# KorexTools — Complete Technical & Agentic Architecture Guide

> Comprehensive technical specification of the 71 browser-based utilities at https://korextools.com. Designed for AI agents, developers, and autonomous systems requiring private, local document manipulation capabilities.

## Technical Architecture
- **Rendering Engine**: Client-side single page app pre-rendered to 246 static HTML pages for instant First Contentful Paint (<300ms) with zero Cumulative Layout Shift (CLS = 0).
- **Processing Sandboxing**: All binary processing happens in browser sandbox memory via WebAssembly (libheif for HEIC decoding), HTML5 Canvas, pdf-lib, and native Web Crypto API.
- **Network Footprint**: Zero API calls during file transformation. No remote telemetry on user inputs.

## Exhaustive Tool Index (71 Tools)

### Silo: Bulk Image Converters & Photo Utilities / Herramientas de Imagen y Conversión Masiva / Ferramentas de Imagem e Conversão em Lote

#### Bulk HEIC to JPG Converter | Convertir HEIC a JPG Masivo | Converter HEIC para JPG em Lote
- **English URL**: [https://korextools.com/en/image/bulk-heic-to-jpg](https://korextools.com/en/image/bulk-heic-to-jpg)
- **Spanish URL**: [https://korextools.com/es/imagen/convertir-heic-a-jpg-masivo](https://korextools.com/es/imagen/convertir-heic-a-jpg-masivo)
- **Portuguese URL**: [https://korextools.com/pt/imagem/converter-heic-para-jpg](https://korextools.com/pt/imagem/converter-heic-para-jpg)
- **Summary**: Convert all your iPhone or iPad (.heic / .heif) photos to standard JPG in one batch. No file limits, no watermarks, and zero cloud uploads.
- **Badge**: 100% Free • Batch ZIP / 100% Gratis • En Lote / 100% Grátis • Em Lote
- **Privacy**: Local RAM execution. Zero data retention.

#### WEBP to JPG Bulk Converter | Convertir WEBP a JPG Masivo | Converter WebP para JPG em Lote
- **English URL**: [https://korextools.com/en/image/from-webp-to-jpg](https://korextools.com/en/image/from-webp-to-jpg)
- **Spanish URL**: [https://korextools.com/es/imagen/convertir-webp-a-jpg](https://korextools.com/es/imagen/convertir-webp-a-jpg)
- **Portuguese URL**: [https://korextools.com/pt/imagem/converter-webp-para-jpg](https://korextools.com/pt/imagem/converter-webp-para-jpg)
- **Summary**: Turn web-downloaded images (.webp or .jfif) into standard JPG files compatible with every desktop program and portal in milliseconds.
- **Badge**: Instant • Batch Mode / Instantáneo • En Lote / Instantâneo • Em Lote
- **Privacy**: Local RAM execution. Zero data retention.

#### Convert JPG to WEBP Bulk | Convertir JPG a WEBP Masivo | Converter JPG para WebP em Lote
- **English URL**: [https://korextools.com/en/image/convert-jpg-to-webp](https://korextools.com/en/image/convert-jpg-to-webp)
- **Spanish URL**: [https://korextools.com/es/imagen/convertir-jpg-a-webp](https://korextools.com/es/imagen/convertir-jpg-a-webp)
- **Portuguese URL**: [https://korextools.com/pt/imagem/converter-jpg-para-webp](https://korextools.com/pt/imagem/converter-jpg-para-webp)
- **Summary**: Cut your website and e-commerce image file sizes by up to 70% by converting JPG and PNG assets into next-gen WEBP format in 1 click.
- **Badge**: SEO Speed • Batch / Especial SEO • En Lote / Especial SEO • Em Lote
- **Privacy**: Local RAM execution. Zero data retention.

#### Online EXIF Metadata Viewer & Remover | Visor y Eliminador de Metadatos EXIF Online | Visualizador e Removedor de Metadados EXIF
- **English URL**: [https://korextools.com/en/image/remove-exif-data-online](https://korextools.com/en/image/remove-exif-data-online)
- **Spanish URL**: [https://korextools.com/es/imagen/quitar-metadatos-fotos-online](https://korextools.com/es/imagen/quitar-metadatos-fotos-online)
- **Portuguese URL**: [https://korextools.com/pt/imagem/remover-metadados-de-fotos](https://korextools.com/pt/imagem/remover-metadados-de-fotos)
- **Summary**: Inspect camera, lens, date, and hidden GPS coordinates with a Google Maps link, and strip metadata instantly without uploading your photos.
- **Badge**: Viewer + GPS Stripper / Visor + Limpiador GPS / Visualizador + Limpeza GPS
- **Privacy**: Local RAM execution. Zero data retention.

#### Bulk Image Resizer Online | Redimensionar Imágenes Masivo | Redimensionar Imagens em Lote
- **English URL**: [https://korextools.com/en/image/bulk-image-resizer](https://korextools.com/en/image/bulk-image-resizer)
- **Spanish URL**: [https://korextools.com/es/imagen/redimensionar-imagenes-masivo](https://korextools.com/es/imagen/redimensionar-imagenes-masivo)
- **Portuguese URL**: [https://korextools.com/pt/imagem/redimensionar-imagens-em-lote](https://korextools.com/pt/imagem/redimensionar-imagens-em-lote)
- **Summary**: Adjust width, height, or percentage scale across dozens of photos simultaneously while locking aspect ratio to prevent distortion.
- **Badge**: Pixels or % • Batch / Píxeles o % • En Lote / Pixels ou % • Em Lote
- **Privacy**: Local RAM execution. Zero data retention.

#### Compress Image to 100KB Online | Comprimir Imagen a 100KB Online | Comprimir Imagem para 100KB Online
- **English URL**: [https://korextools.com/en/image/compress-image-to-100kb-online](https://korextools.com/en/image/compress-image-to-100kb-online)
- **Spanish URL**: [https://korextools.com/es/imagen/comprimir-imagen-a-100kb](https://korextools.com/es/imagen/comprimir-imagen-a-100kb)
- **Portuguese URL**: [https://korextools.com/pt/imagem/comprimir-imagem-para-100kb](https://korextools.com/pt/imagem/comprimir-imagem-para-100kb)
- **Summary**: Does a visa application, university portal, or government form require a photo under 100 KB or 200 KB? Set your exact limit and our algorithm hits it automatically.
- **Badge**: Exact KB Target / Peso Exacto • Trámites / Peso Exato • Trâmites
- **Privacy**: Local RAM execution. Zero data retention.

#### Compress Image to 50KB Online | Comprimir Imagen a 50KB Online | Comprimir Imagem para 50KB Online
- **English URL**: [https://korextools.com/en/image/compress-image-to-50kb](https://korextools.com/en/image/compress-image-to-50kb)
- **Spanish URL**: [https://korextools.com/es/imagen/comprimir-imagen-a-50kb](https://korextools.com/es/imagen/comprimir-imagen-a-50kb)
- **Portuguese URL**: [https://korextools.com/pt/imagem/comprimir-imagem-para-50kb](https://korextools.com/pt/imagem/comprimir-imagem-para-50kb)
- **Summary**: Did the embassy or consular portal reject your photo for exceeding 50 KB? Our binary search algorithm lands strictly below 50 KB with sharp facial detail.
- **Badge**: Visas • Passports / Visas • Pasaportes / Vistos • Passaportes
- **Privacy**: Local RAM execution. Zero data retention.

#### Compress Image to 200KB Online | Comprimir Imagen a 200KB Online | Comprimir Imagem para 200KB Online
- **English URL**: [https://korextools.com/en/image/compress-image-to-200kb](https://korextools.com/en/image/compress-image-to-200kb)
- **Spanish URL**: [https://korextools.com/es/imagen/comprimir-imagen-a-200kb](https://korextools.com/es/imagen/comprimir-imagen-a-200kb)
- **Portuguese URL**: [https://korextools.com/pt/imagem/comprimir-imagem-para-200kb](https://korextools.com/pt/imagem/comprimir-imagem-para-200kb)
- **Summary**: The ideal target for HR portals (Workday, LinkedIn, job boards) and e-commerce stores requiring sharp photos strictly under 200 KB.
- **Badge**: Jobs • Resume • Web / Empleo • CV • Web / Emprego • CV • Web
- **Privacy**: Local RAM execution. Zero data retention.

#### Convert SVG to PNG High Resolution | Convertir SVG a PNG Alta Resolución | Converter SVG para PNG em Alta Resolução
- **English URL**: [https://korextools.com/en/image/svg-to-png](https://korextools.com/en/image/svg-to-png)
- **Spanish URL**: [https://korextools.com/es/imagen/convertir-imagen-svg-a-png](https://korextools.com/es/imagen/convertir-imagen-svg-a-png)
- **Portuguese URL**: [https://korextools.com/pt/imagem/converter-svg-para-png](https://korextools.com/pt/imagem/converter-svg-para-png)
- **Summary**: Export vector logos, icons, and .svg illustrations into razor-sharp .png images with transparent backgrounds at any resolution scale.
- **Badge**: 1x to 8x Scale • Transparent / Escala 1x a 8x • Transparente / Escala 1x a 8x • Transparente
- **Privacy**: Local RAM execution. Zero data retention.

#### Convert WEBP to PNG Online Free | Convertir WEBP a PNG Online Gratis | Converter WebP para PNG Online Grátis
- **English URL**: [https://korextools.com/en/image/convert-webp-to-png](https://korextools.com/en/image/convert-webp-to-png)
- **Spanish URL**: [https://korextools.com/es/imagen/convertir-webp-a-png](https://korextools.com/es/imagen/convertir-webp-a-png)
- **Portuguese URL**: [https://korextools.com/pt/imagem/converter-webp-para-png](https://korextools.com/pt/imagem/converter-webp-para-png)
- **Summary**: Convert modern WEBP graphics to standard PNG with 100% alpha transparency preserved, processed locally without cloud uploads.
- **Badge**: Alpha Transparency · Lossless / Transparencia Alfa · Sin Pérdida / Transparência Alfa · Sem Perdas
- **Privacy**: Local RAM execution. Zero data retention.

#### Convert PNG to WEBP Online Free | Convertir PNG a WEBP Online Gratis | Converter PNG para WebP Online Grátis
- **English URL**: [https://korextools.com/en/image/convert-png-to-webp](https://korextools.com/en/image/convert-png-to-webp)
- **Spanish URL**: [https://korextools.com/es/imagen/convertir-png-a-webp](https://korextools.com/es/imagen/convertir-png-a-webp)
- **Portuguese URL**: [https://korextools.com/pt/imagem/converter-png-para-webp](https://korextools.com/pt/imagem/converter-png-para-webp)
- **Summary**: Reduce PNG image file weight by up to 80% by converting to next-gen WEBP with alpha transparency to boost your Core Web Vitals.
- **Badge**: Web Compression · Lightweight / Compresión Web · Ligero / Compressão Web · Leve
- **Privacy**: Local RAM execution. Zero data retention.

#### Convert JPG to PDF Online Free | Convertir JPG a PDF Online Gratis | Converter JPG para PDF Online Grátis
- **English URL**: [https://korextools.com/en/image/convert-jpg-to-pdf](https://korextools.com/en/image/convert-jpg-to-pdf)
- **Spanish URL**: [https://korextools.com/es/imagen/convertir-jpg-a-pdf](https://korextools.com/es/imagen/convertir-jpg-a-pdf)
- **Portuguese URL**: [https://korextools.com/pt/imagem/converter-jpg-para-pdf](https://korextools.com/pt/imagem/converter-jpg-para-pdf)
- **Summary**: Transform JPG, JPEG, and photos into professional PDF documents ready to print or email, processed locally without server uploads.
- **Badge**: PDF Document · Bulk / Documento PDF · En Lote / Documento PDF · Em Lote
- **Privacy**: Local RAM execution. Zero data retention.

#### Convert PNG to JPG Online Free | Convertir PNG a JPG Online Gratis | Converter PNG para JPG Online Grátis
- **English URL**: [https://korextools.com/en/image/convert-png-to-jpg](https://korextools.com/en/image/convert-png-to-jpg)
- **Spanish URL**: [https://korextools.com/es/imagen/convertir-png-a-jpg](https://korextools.com/es/imagen/convertir-png-a-jpg)
- **Portuguese URL**: [https://korextools.com/pt/imagem/converter-png-para-jpg](https://korextools.com/pt/imagem/converter-png-para-jpg)
- **Summary**: Convert PNG images to universal JPEG format with smart white background filling to prevent transparent areas from turning black.
- **Badge**: Full Compatibility · Fast / Compatibilidad Total · Rápido / Compatibilidade Total · Rápido
- **Privacy**: Local RAM execution. Zero data retention.

#### Convert HEIC to PNG Online Free | Convertir HEIC a PNG Online Gratis | Converter HEIC para PNG Online Grátis
- **English URL**: [https://korextools.com/en/image/convert-heic-to-png](https://korextools.com/en/image/convert-heic-to-png)
- **Spanish URL**: [https://korextools.com/es/imagen/convertir-heic-a-png](https://korextools.com/es/imagen/convertir-heic-a-png)
- **Portuguese URL**: [https://korextools.com/pt/imagem/converter-heic-para-png](https://korextools.com/pt/imagem/converter-heic-para-png)
- **Summary**: Decode Apple iPhone HEIC photos into lossless PNG format directly in your browser RAM with zero server uploads.
- **Badge**: Apple iPhone · Transparency / Apple iPhone · Transparencia / Apple iPhone · Transparência
- **Privacy**: Local RAM execution. Zero data retention.

#### Invert Image Colors Online Free | Invertir Colores de Imagen Online | Inverter Cores de Imagem Online
- **English URL**: [https://korextools.com/en/image/invert-image-colors](https://korextools.com/en/image/invert-image-colors)
- **Spanish URL**: [https://korextools.com/es/imagen/invertir-colores-imagen](https://korextools.com/es/imagen/invertir-colores-imagen)
- **Portuguese URL**: [https://korextools.com/pt/imagem/inverter-cores-da-imagem](https://korextools.com/pt/imagem/inverter-cores-da-imagem)
- **Summary**: Turn photos, logos, and graphic illustrations into high-contrast visual negatives with adjustable intensity directly in your browser.
- **Badge**: RGB Negative • 1 Click / Negativo RGB • 1 Clic / Negativo RGB • 1 Clique
- **Privacy**: Local RAM execution. Zero data retention.

#### Circle Crop Image Online Free | Recortar Imagen en Círculo Online Gratis | Recortar Imagem em Círculo Online Grátis
- **English URL**: [https://korextools.com/en/image/circle-crop-image](https://korextools.com/en/image/circle-crop-image)
- **Spanish URL**: [https://korextools.com/es/imagen/recortar-imagen-en-circulo](https://korextools.com/es/imagen/recortar-imagen-en-circulo)
- **Portuguese URL**: [https://korextools.com/pt/imagem/recortar-imagem-em-circulo](https://korextools.com/pt/imagem/recortar-imagem-em-circulo)
- **Summary**: Transform any rectangular photo into a perfect circle with a transparent background ready for profile avatars, social media, and web design.
- **Badge**: Round Avatar • Transparent PNG / Avatar Redondo • PNG Transparente / Avatar Redondo • PNG Transparente
- **Privacy**: Local RAM execution. Zero data retention.

#### Pixelate Image Online Free | Pixelar Imagen Online Gratis | Pixelar Imagem Online Grátis
- **English URL**: [https://korextools.com/en/image/pixelate-image-online](https://korextools.com/en/image/pixelate-image-online)
- **Spanish URL**: [https://korextools.com/es/imagen/pixelar-imagen-online](https://korextools.com/es/imagen/pixelar-imagen-online)
- **Portuguese URL**: [https://korextools.com/pt/imagem/pixelar-imagem-online](https://korextools.com/pt/imagem/pixelar-imagem-online)
- **Summary**: Blur and censor faces, vehicle license plates, ID numbers, or private text with adjustable block size with zero cloud uploads.
- **Badge**: Censor Faces • Private / Censurar Rostros • Privado / Censurar Rostos • Privado
- **Privacy**: Local RAM execution. Zero data retention.

#### Convert AVIF to JPG Online Free | Convertir AVIF a JPG Online Gratis | Converter AVIF para JPG Online Grátis
- **English URL**: [https://korextools.com/en/image/convert-avif-to-jpg](https://korextools.com/en/image/convert-avif-to-jpg)
- **Spanish URL**: [https://korextools.com/es/imagen/convertir-avif-a-jpg](https://korextools.com/es/imagen/convertir-avif-a-jpg)
- **Portuguese URL**: [https://korextools.com/pt/imagem/converter-avif-para-jpg](https://korextools.com/pt/imagem/converter-avif-para-jpg)
- **Summary**: Transform next-gen AVIF pictures into universally compatible JPG files for any graphic editor, social network, or image viewer with zero server uploads.
- **Badge**: 100% Client-Side • No Limits / 100% Client-Side • Sin Límites / 100% no Navegador • Sem Limites
- **Privacy**: Local RAM execution. Zero data retention.

### Silo: PDF Tools & Digital Signature Maker / Herramientas PDF y Firma Digital / Ferramentas de PDF e Assinatura Digital

#### Merge PDF Online Free | Unir PDF Online Gratis | Juntar PDF Online Grátis
- **English URL**: [https://korextools.com/en/pdf/merge-pdf-online](https://korextools.com/en/pdf/merge-pdf-online)
- **Spanish URL**: [https://korextools.com/es/pdf/unir-pdf](https://korextools.com/es/pdf/unir-pdf)
- **Portuguese URL**: [https://korextools.com/pt/pdf/juntar-pdf](https://korextools.com/pt/pdf/juntar-pdf)
- **Summary**: Combine contracts, invoices, receipts, and PDF reports in the exact order you want without uploading confidential documents to any cloud server.
- **Badge**: Unlimited • 100% Private / Sin Límites • 100% Privado / Sem Limites • 100% Privado
- **Privacy**: Local RAM execution. Zero data retention.

#### Split PDF Online Free | Dividir PDF Online Gratis | Dividir PDF Online Grátis
- **English URL**: [https://korextools.com/en/pdf/split-pdf-online](https://korextools.com/en/pdf/split-pdf-online)
- **Spanish URL**: [https://korextools.com/es/pdf/dividir-pdf](https://korextools.com/es/pdf/dividir-pdf)
- **Portuguese URL**: [https://korextools.com/pt/pdf/dividir-pdf](https://korextools.com/pt/pdf/dividir-pdf)
- **Summary**: Separate every page of a PDF into standalone files or split by custom page ranges instantly inside your browser.
- **Badge**: Separate Pages • ZIP / Separar Hojas • ZIP / Separar Páginas • ZIP
- **Privacy**: Local RAM execution. Zero data retention.

#### Extract Pages from PDF Online | Extraer Páginas de PDF Online | Extrair Páginas de PDF Online
- **English URL**: [https://korextools.com/en/pdf/extract-pages-from-pdf](https://korextools.com/en/pdf/extract-pages-from-pdf)
- **Spanish URL**: [https://korextools.com/es/pdf/extraer-paginas-de-pdf](https://korextools.com/es/pdf/extraer-paginas-de-pdf)
- **Portuguese URL**: [https://korextools.com/pt/pdf/extrair-paginas-de-pdf](https://korextools.com/pt/pdf/extrair-paginas-de-pdf)
- **Summary**: Click the exact page numbers you want to keep and generate a clean new PDF document containing only those sheets.
- **Badge**: Visual Picker • 1 Click / Selección Visual • 1 Clic / Seleção Visual • 1 Clique
- **Privacy**: Local RAM execution. Zero data retention.

#### Compress PDF Free Online | Comprimir PDF Gratis Online | Comprimir PDF Grátis Online
- **English URL**: [https://korextools.com/en/pdf/compress-pdf-free](https://korextools.com/en/pdf/compress-pdf-free)
- **Spanish URL**: [https://korextools.com/es/pdf/comprimir-pdf-gratis](https://korextools.com/es/pdf/comprimir-pdf-gratis)
- **Portuguese URL**: [https://korextools.com/pt/pdf/comprimir-pdf](https://korextools.com/pt/pdf/comprimir-pdf)
- **Summary**: tuned internal object streams, strip bloated metadata, and reduce PDF document file sizes directly inside your browser.
- **Badge**: Shrink Size • Private / Reducir Peso • Privado / Reduzir Tamanho • Privado
- **Privacy**: Local RAM execution. Zero data retention.

#### Draw Signature Online Free (PNG) | Dibujar Firma Digital Online Gratis | Desenhar Assinatura Digital Online Grátis
- **English URL**: [https://korextools.com/en/pdf/draw-signature-online-free](https://korextools.com/en/pdf/draw-signature-online-free)
- **Spanish URL**: [https://korextools.com/es/pdf/dibujar-firma-online-gratis](https://korextools.com/es/pdf/dibujar-firma-online-gratis)
- **Portuguese URL**: [https://korextools.com/pt/pdf/desenhar-assinatura-online-gratis](https://korextools.com/pt/pdf/desenhar-assinatura-online-gratis)
- **Summary**: Sign with your finger on mobile or mouse on desktop, choose ink color (black, legal blue, or dark ink), and download a clean transparent PNG ready for any document.
- **Badge**: Transparent PNG / Fondo Transparente • PNG / Fundo Transparente • PNG
- **Privacy**: Local RAM execution. Zero data retention.

#### Sign PDF Document Online Free | Firmar Documento PDF Online Gratis | Assinar PDF Online Grátis
- **English URL**: [https://korextools.com/en/pdf/sign-pdf-document-online](https://korextools.com/en/pdf/sign-pdf-document-online)
- **Spanish URL**: [https://korextools.com/es/pdf/firmar-documento-pdf-online](https://korextools.com/es/pdf/firmar-documento-pdf-online)
- **Portuguese URL**: [https://korextools.com/pt/pdf/assinar-pdf](https://korextools.com/pt/pdf/assinar-pdf)
- **Summary**: Stamp your handwritten signature or initials directly onto any contract, NDA, or invoice PDF without uploading confidential papers to remote cloud servers.
- **Badge**: 100% Private • $0 / 100% Privado • $0 / 100% Privado • $0
- **Privacy**: Local RAM execution. Zero data retention.

#### Delete PDF Pages Online Free | Eliminar Páginas de PDF Online Gratis | Remover Páginas de PDF Online Grátis
- **English URL**: [https://korextools.com/en/pdf/delete-pdf-pages-online](https://korextools.com/en/pdf/delete-pdf-pages-online)
- **Spanish URL**: [https://korextools.com/es/pdf/eliminar-paginas-de-pdf](https://korextools.com/es/pdf/eliminar-paginas-de-pdf)
- **Portuguese URL**: [https://korextools.com/pt/pdf/remover-paginas-de-pdf](https://korextools.com/pt/pdf/remover-paginas-de-pdf)
- **Summary**: Remove blank pages, duplicate sheets, or confidential sections from any PDF document by visually picking them on a responsive thumbnail grid.
- **Badge**: Visual • Instant / Visual • Instantáneo / Visual • Instantâneo
- **Privacy**: Local RAM execution. Zero data retention.

#### Rotate PDF Pages Online Free | Rotar y Girar Páginas PDF Online | Girar e Rotacionar Páginas de PDF Online
- **English URL**: [https://korextools.com/en/pdf/rotate-pdf-pages-online](https://korextools.com/en/pdf/rotate-pdf-pages-online)
- **Spanish URL**: [https://korextools.com/es/pdf/rotar-paginas-pdf](https://korextools.com/es/pdf/rotar-paginas-pdf)
- **Portuguese URL**: [https://korextools.com/pt/pdf/girar-pdf-online-gratis](https://korextools.com/pt/pdf/girar-pdf-online-gratis)
- **Summary**: Fix upside-down scanned pages, flip portrait to landscape orientation, and rotate individual sheets or entire files in seconds.
- **Badge**: 90° / 180° • $0 / 90° / 180° • $0 / 90° / 180° • $0
- **Privacy**: Local RAM execution. Zero data retention.

#### Organize and Reorder PDF Pages | Ordenar y Organizar Páginas PDF | Organizar e Reordenar Páginas de PDF
- **English URL**: [https://korextools.com/en/pdf/reorder-pdf-pages](https://korextools.com/en/pdf/reorder-pdf-pages)
- **Spanish URL**: [https://korextools.com/es/pdf/ordenar-paginas-pdf](https://korextools.com/es/pdf/ordenar-paginas-pdf)
- **Portuguese URL**: [https://korextools.com/pt/pdf/organizar-paginas-de-pdf](https://korextools.com/pt/pdf/organizar-paginas-de-pdf)
- **Summary**: Rearrange the sequence of pages in any PDF file visually with intuitive drag-and-drop or up/down controls before downloading.
- **Badge**: Drag & Drop • $0 / Arrastrar • Guardar / Arrastar • Salvar
- **Privacy**: Local RAM execution. Zero data retention.

#### Crop PDF Margins Online Free | Recortar Márgenes de PDF Online | Cortar Margens de PDF Online
- **English URL**: [https://korextools.com/en/pdf/crop-pdf-margins-online](https://korextools.com/en/pdf/crop-pdf-margins-online)
- **Spanish URL**: [https://korextools.com/es/pdf/recortar-paginas-pdf](https://korextools.com/es/pdf/recortar-paginas-pdf)
- **Portuguese URL**: [https://korextools.com/pt/pdf/cortar-margens-de-pdf](https://korextools.com/pt/pdf/cortar-margens-de-pdf)
- **Summary**: Trim excessive whitespace from PDF sheets to tuned shipping labels, receipts, and documents for thermal printers and tablets.
- **Badge**: Labels • Shipping / Etiquetas • Envíos / Etiquetas • Envios
- **Privacy**: Local RAM execution. Zero data retention.

#### Add Page Numbers to PDF Online | Numerar Páginas de PDF Online | Numerar Páginas de PDF Online
- **English URL**: [https://korextools.com/en/pdf/add-page-numbers-to-pdf](https://korextools.com/en/pdf/add-page-numbers-to-pdf)
- **Spanish URL**: [https://korextools.com/es/pdf/numerar-paginas-de-pdf](https://korextools.com/es/pdf/numerar-paginas-de-pdf)
- **Portuguese URL**: [https://korextools.com/pt/pdf/numerar-paginas-de-pdf](https://korextools.com/pt/pdf/numerar-paginas-de-pdf)
- **Summary**: Insert clean page numbers into the footer or header of any PDF document with custom formats ("Page X of Y") for legal briefs and books.
- **Badge**: Header & Footer / Encabezado y Pie / Cabeçalho e Rodapé
- **Privacy**: Local RAM execution. Zero data retention.

#### Add Watermark to PDF Online Free | Poner Marca de Agua en PDF Online | Adicionar Marca d’Água em PDF Online
- **English URL**: [https://korextools.com/en/pdf/add-watermark-to-pdf](https://korextools.com/en/pdf/add-watermark-to-pdf)
- **Spanish URL**: [https://korextools.com/es/pdf/marca-de-agua-en-pdf](https://korextools.com/es/pdf/marca-de-agua-en-pdf)
- **Portuguese URL**: [https://korextools.com/pt/pdf/adicionar-marca-dagua-em-pdf](https://korextools.com/pt/pdf/adicionar-marca-dagua-em-pdf)
- **Summary**: Stamp semi-transparent diagonal watermarks ("CONFIDENTIAL", "DRAFT", "SAMPLE") across all PDF pages to safeguard intellectual property.
- **Badge**: Text or Logo / Texto o Logo / Texto • Opacidade
- **Privacy**: Local RAM execution. Zero data retention.

#### Convert PDF to JPG & PNG Online | Convertir PDF a JPG y PNG Online | Converter PDF em JPG e PNG Online
- **English URL**: [https://korextools.com/en/pdf/convert-pdf-to-jpg-images](https://korextools.com/en/pdf/convert-pdf-to-jpg-images)
- **Spanish URL**: [https://korextools.com/es/pdf/convertir-pdf-a-jpg-imagenes](https://korextools.com/es/pdf/convertir-pdf-a-jpg-imagenes)
- **Portuguese URL**: [https://korextools.com/pt/pdf/converter-pdf-em-jpg](https://korextools.com/pt/pdf/converter-pdf-em-jpg)
- **Summary**: Export every page from any PDF document as individual high-resolution JPG or PNG images bundled in a clean downloadable ZIP file.
- **Badge**: HD Resolution • ZIP / Alta Resolución • ZIP / Alta Resolução • ZIP
- **Privacy**: Local RAM execution. Zero data retention.

#### Protect PDF with Password Online | Proteger PDF con Contraseña Online | Proteger PDF com Senha Online
- **English URL**: [https://korextools.com/en/pdf/protect-pdf-with-password](https://korextools.com/en/pdf/protect-pdf-with-password)
- **Spanish URL**: [https://korextools.com/es/pdf/proteger-pdf-con-contrasena](https://korextools.com/es/pdf/proteger-pdf-con-contrasena)
- **Portuguese URL**: [https://korextools.com/pt/pdf/proteger-pdf-com-senha](https://korextools.com/pt/pdf/proteger-pdf-com-senha)
- **Summary**: Lock your sensitive contracts, bank statements, and payroll receipts with a secure password to prevent unauthorized reading.
- **Badge**: Client Encryption • $0 / Cifrado Local • $0 / Cifragem Local • $0
- **Privacy**: Local RAM execution. Zero data retention.

#### Flatten PDF Forms and Fields | Aplanar PDF y Formularios Online | Achatar PDF e Formulários Online
- **English URL**: [https://korextools.com/en/pdf/flatten-pdf-forms-online](https://korextools.com/en/pdf/flatten-pdf-forms-online)
- **Spanish URL**: [https://korextools.com/es/pdf/aplanar-pdf-formularios](https://korextools.com/es/pdf/aplanar-pdf-formularios)
- **Portuguese URL**: [https://korextools.com/pt/pdf/achatar-pdf-formularios](https://korextools.com/pt/pdf/achatar-pdf-formularios)
- **Summary**: Turn interactive form fields, checkmarks, signatures, and comments into fixed read-only pages to prevent tampering before legal submission.
- **Badge**: Read-only Fields / Campos No Editables / Campos Não Editáveis
- **Privacy**: Local RAM execution. Zero data retention.

### Silo: QR Code, Barcode & Classroom Utilities / Generadores de Códigos QR, Barras y Utilidades / Geradores de QR Code, Código de Barras e Utilitários

#### Create QR Code with Logo Free | Crear Código QR con Logo Gratis | Gerar QR Code com Logo Grátis
- **English URL**: [https://korextools.com/en/tools/qr-code-generator-with-logo](https://korextools.com/en/tools/qr-code-generator-with-logo)
- **Spanish URL**: [https://korextools.com/es/utilidades/crear-codigo-qr-con-logo](https://korextools.com/es/utilidades/crear-codigo-qr-con-logo)
- **Portuguese URL**: [https://korextools.com/pt/utilitarios/gerar-qr-code-com-logo](https://korextools.com/pt/utilitarios/gerar-qr-code-com-logo)
- **Summary**: Generate permanent QR codes for URLs, WhatsApp, Wi-Fi, vCard Contact Cards, Google Maps Location, Email, Phone Call, and SMS. Embed your logo and download as HD PNG or a ready-to-print US Letter PDF sheet.
- **Badge**: 9 Modes (URL, WP, Wi-Fi, vCard) • Letter PDF / 9 Modos (URL, WP, Wi-Fi, vCard) • PDF Carta / 9 Modos (URL, WhatsApp, Wi-Fi, vCard) • PDF Carta
- **Privacy**: Local RAM execution. Zero data retention.

#### Free Barcode Generator Online | Creador de Código de Barras Gratis | Gerador de Código de Barras Grátis
- **English URL**: [https://korextools.com/en/tools/free-barcode-generator](https://korextools.com/en/tools/free-barcode-generator)
- **Spanish URL**: [https://korextools.com/es/utilidades/creador-codigo-de-barras-gratis](https://korextools.com/es/utilidades/creador-codigo-de-barras-gratis)
- **Portuguese URL**: [https://korextools.com/pt/utilitarios/gerador-de-codigo-de-barras](https://korextools.com/pt/utilitarios/gerador-de-codigo-de-barras)
- **Summary**: Generate industry-standard barcodes (Code-128, EAN-13, CODE39) for retail inventory, products, and warehouses with instant PNG download or A4 sheet printing.
- **Badge**: Code128 • EAN13 • Bulk A4 / Code128 • EAN13 • Lote A4 / Code128 • EAN13 • Lote A4
- **Privacy**: Local RAM execution. Zero data retention.

#### Fullscreen Timer Online Free | Temporizador Pantalla Completa Online | Timer em Tela Cheia Online
- **English URL**: [https://korextools.com/en/tools/fullscreen-timer-online](https://korextools.com/en/tools/fullscreen-timer-online)
- **Spanish URL**: [https://korextools.com/es/utilidades/temporizador-pantalla-completa](https://korextools.com/es/utilidades/temporizador-pantalla-completa)
- **Portuguese URL**: [https://korextools.com/pt/utilitarios/timer-tela-cheia-online](https://korextools.com/pt/utilitarios/timer-tela-cheia-online)
- **Summary**: High-contrast giant countdown timer and stopwatch clearly visible from the back of any classroom, gym, or lecture hall with built-in audio alarm.
- **Badge**: Giant Digits • Alarm / Números Gigantes • Con Alarma / Números Gigantes • Com Alarme
- **Privacy**: Local RAM execution. Zero data retention.

#### Free QR Code Generator for URLs & PDF | Generador QR para Enlaces y PDF Gratis | Gerador de QR Code para Links e PDF Grátis
- **English URL**: [https://korextools.com/en/tools/qr-code-for-url-pdf](https://korextools.com/en/tools/qr-code-for-url-pdf)
- **Spanish URL**: [https://korextools.com/es/utilidades/generar-qr-para-enlaces-pdf](https://korextools.com/es/utilidades/generar-qr-para-enlaces-pdf)
- **Portuguese URL**: [https://korextools.com/pt/utilitarios/gerar-qr-code-para-links-e-pdf](https://korextools.com/pt/utilitarios/gerar-qr-code-para-links-e-pdf)
- **Summary**: Create permanent static QR codes for restaurant menus, web pages, and printed brochures. Zero redirects, never expires, and 100% free.
- **Badge**: Permanent Static • High Resolution / Estático Permanente • Alta Resolución / Estático Permanente • Alta Resolução
- **Privacy**: Local RAM execution. Zero data retention.

#### Free Wi-Fi QR Code Generator | Generador de Código QR para Wi-Fi Gratis | Gerador de QR Code para Wi-Fi Grátis
- **English URL**: [https://korextools.com/en/tools/qr-code-wifi-connect](https://korextools.com/en/tools/qr-code-wifi-connect)
- **Spanish URL**: [https://korextools.com/es/utilidades/generar-qr-wifi](https://korextools.com/es/utilidades/generar-qr-wifi)
- **Portuguese URL**: [https://korextools.com/pt/utilitarios/gerar-qr-code-wifi](https://korextools.com/pt/utilitarios/gerar-qr-code-wifi)
- **Summary**: Connect guests, customers, and team members to Wi-Fi instantly with phone cameras. Never recite long passwords again with total local security.
- **Badge**: WPA/WPA2/WPA3 • Instant Connect / WPA/WPA2/WPA3 • Conexión Automática / WPA/WPA2/WPA3 • Conexão Automática
- **Privacy**: Local RAM execution. Zero data retention.

#### Free WhatsApp QR Code Generator | Generador QR para WhatsApp Directo Gratis | Gerador de QR Code para WhatsApp Direto
- **English URL**: [https://korextools.com/en/tools/qr-code-whatsapp-chat](https://korextools.com/en/tools/qr-code-whatsapp-chat)
- **Spanish URL**: [https://korextools.com/es/utilidades/generar-qr-whatsapp-directo](https://korextools.com/es/utilidades/generar-qr-whatsapp-directo)
- **Portuguese URL**: [https://korextools.com/pt/utilitarios/gerar-qr-code-whatsapp](https://korextools.com/pt/utilitarios/gerar-qr-code-whatsapp)
- **Summary**: Enable prospects and customers to start WhatsApp conversations instantly without saving your phone number into their contacts.
- **Badge**: Custom Message • Direct Chat / Mensaje Personalizado • Apertura Inmediata / Mensagem Personalizada • Abertura Imediata
- **Privacy**: Local RAM execution. Zero data retention.

#### Free vCard QR Code Generator | Generador de QR para Contactos vCard $0 | Gerador de QR Code vCard para Contatos
- **English URL**: [https://korextools.com/en/tools/qr-code-vcard-contact](https://korextools.com/en/tools/qr-code-vcard-contact)
- **Spanish URL**: [https://korextools.com/es/utilidades/generar-qr-contacto-vcard](https://korextools.com/es/utilidades/generar-qr-contacto-vcard)
- **Portuguese URL**: [https://korextools.com/pt/utilitarios/gerar-qr-code-vcard-contato](https://korextools.com/pt/utilitarios/gerar-qr-code-vcard-contato)
- **Summary**: Craft modern digital business cards: scanning prompts phones to open native contact address books with all details pre-filled and ready to save.
- **Badge**: vCard 3.0 • One-Tap Contact Save / vCard 3.0 • Guarda en Agenda al Instante / vCard 3.0 • Salva na Agenda na Hora
- **Privacy**: Local RAM execution. Zero data retention.

#### Scan QR Code Online from Screen & File | Escanear Código QR en Pantalla Gratis $0 | Ler QR Code na Tela do Computador
- **English URL**: [https://korextools.com/en/tools/scan-qr-code-online](https://korextools.com/en/tools/scan-qr-code-online)
- **Spanish URL**: [https://korextools.com/es/utilidades/escanear-qr-online-pantalla](https://korextools.com/es/utilidades/escanear-qr-online-pantalla)
- **Portuguese URL**: [https://korextools.com/pt/utilitarios/ler-qr-code-na-tela](https://korextools.com/pt/utilitarios/ler-qr-code-na-tela)
- **Summary**: Read the contents of any QR code by uploading an image, pasting a clipboard screenshot, or using your computer webcam.
- **Badge**: From Image or File • In-Memory Decode / Desde Imagen o Captura • Decodifica en RAM / Por Imagem ou Print • Decodifica na RAM
- **Privacy**: Local RAM execution. Zero data retention.

#### Print Barcode Label Sheets Online Free | Imprimir Hojas de Códigos de Barras $0 | Imprimir Folhas de Código de Barras
- **English URL**: [https://korextools.com/en/tools/print-barcode-labels-sheet](https://korextools.com/en/tools/print-barcode-labels-sheet)
- **Spanish URL**: [https://korextools.com/es/utilidades/imprimir-hojas-codigos-barras](https://korextools.com/es/utilidades/imprimir-hojas-codigos-barras)
- **Portuguese URL**: [https://korextools.com/pt/utilitarios/imprimir-folhas-de-codigo-de-barras](https://korextools.com/pt/utilitarios/imprimir-folhas-de-codigo-de-barras)
- **Summary**: Design and generate complete adhesive label sheets on PDF ready to print on standard office laser or inkjet printers.
- **Badge**: Letter & A4 • Adhesive Label Grids / Hojas Carta y A4 • Cuadrículas para Etiquetas / Folhas A4 e Carta • Grades de Etiquetas
- **Privacy**: Local RAM execution. Zero data retention.

#### Free Fullscreen Stopwatch Online | Cronómetro Pantalla Completa Online $0 | Cronômetro em Tela Cheia Online
- **English URL**: [https://korextools.com/en/tools/fullscreen-stopwatch-online](https://korextools.com/en/tools/fullscreen-stopwatch-online)
- **Spanish URL**: [https://korextools.com/es/utilidades/cronometro-pantalla-completa](https://korextools.com/es/utilidades/cronometro-pantalla-completa)
- **Portuguese URL**: [https://korextools.com/pt/utilitarios/cronometro-tela-cheia-online](https://korextools.com/pt/utilitarios/cronometro-tela-cheia-online)
- **Summary**: High-precision digital stopwatch with giant legible numerals, lap time splits, and distraction-free fullscreen mode.
- **Badge**: Laps • Milliseconds • F11 Mode / Vueltas (Laps) • Milisegundos • Modo F11 / Voltas (Laps) • Milissegundos • Modo F11
- **Privacy**: Local RAM execution. Zero data retention.

#### Free Online Pomodoro Focus Timer | Temporizador Pomodoro Online Gratis $0 | Timer Pomodoro Online Grátis $0
- **English URL**: [https://korextools.com/en/tools/pomodoro-focus-timer](https://korextools.com/en/tools/pomodoro-focus-timer)
- **Spanish URL**: [https://korextools.com/es/utilidades/temporizador-pomodoro-online](https://korextools.com/es/utilidades/temporizador-pomodoro-online)
- **Portuguese URL**: [https://korextools.com/pt/utilitarios/timer-pomodoro-online](https://korextools.com/pt/utilitarios/timer-pomodoro-online)
- **Summary**: Supercharge your study and work sessions with 25-minute deep focus intervals balanced by 5 and 15-minute restorative breaks.
- **Badge**: 25/5 Technique • Audio Alerts • Focus / Técnica 25/5 • Alarmas de Audio • Enfoque / Técnica 25/5 • Alarmes de Áudio • Foco
- **Privacy**: Local RAM execution. Zero data retention.

### Silo: Text Formatting, Diff Checker & Social Fonts / Herramientas de Texto, Comparación y Fuentes / Ferramentas de Texto, Comparação e Fontes para Redes Sociais

#### Uppercase to Lowercase Converter Online | Convertir Mayúsculas a Minúsculas Online | Converter Maiúsculas em Minúsculas Online
- **English URL**: [https://korextools.com/en/text/uppercase-to-lowercase](https://korextools.com/en/text/uppercase-to-lowercase)
- **Spanish URL**: [https://korextools.com/es/texto/convertir-mayusculas-a-minusculas](https://korextools.com/es/texto/convertir-mayusculas-a-minusculas)
- **Portuguese URL**: [https://korextools.com/pt/texto/converter-maiusculas-para-minusculas](https://korextools.com/pt/texto/converter-maiusculas-para-minusculas)
- **Summary**: Fix accidental Caps Lock text, switch between UPPERCASE, lowercase, Sentence case, or Title Case, and strip extra spaces in 1 click.
- **Badge**: 7 Modes + Word Count / 7 Modos + Contador / 7 Modos + Contador
- **Privacy**: Local RAM execution. Zero data retention.

#### Compare Two Texts Online (Diff Checker) | Comparar Dos Textos Online (Ver Diferencias) | Comparar Dois Textos Online (Ver Diferenças)
- **English URL**: [https://korextools.com/en/text/compare-two-texts-online](https://korextools.com/en/text/compare-two-texts-online)
- **Spanish URL**: [https://korextools.com/es/texto/comparar-dos-textos-online](https://korextools.com/es/texto/comparar-dos-textos-online)
- **Portuguese URL**: [https://korextools.com/pt/texto/comparar-dois-textos-online](https://korextools.com/pt/texto/comparar-dois-textos-online)
- **Summary**: Paste your Original Text and Modified Text to instantly highlight which lines or words were added (green) and which were removed (red).
- **Badge**: Color Diff Highlight / Resaltado de Cambios / Destaque de Alterações
- **Privacy**: Local RAM execution. Zero data retention.

#### Instagram Fonts Copy and Paste | Letras para Instagram Copiar y Pegar | Letras para Instagram Copiar e Colar
- **English URL**: [https://korextools.com/en/text/instagram-fonts-copy-paste](https://korextools.com/en/text/instagram-fonts-copy-paste)
- **Spanish URL**: [https://korextools.com/es/texto/letras-copiar-y-pegar-instagram](https://korextools.com/es/texto/letras-copiar-y-pegar-instagram)
- **Portuguese URL**: [https://korextools.com/pt/texto/letras-para-instagram-copiar-e-colar](https://korextools.com/pt/texto/letras-para-instagram-copiar-e-colar)
- **Summary**: Type your phrase above and click any style (Cursive, Bold, Gothic, Bubble, Small Caps) to copy it instantly for your social media bio or captions.
- **Badge**: 25+ Fonts • 1-Click Copy / +25 Fuentes • 1 Clic / 20 Estilos • 1 Clique
- **Privacy**: Local RAM execution. Zero data retention.

#### Compare Two Lists Online Free | Comparar Dos Listas Online Gratis | Comparar Duas Listas Online Grátis
- **English URL**: [https://korextools.com/en/text/compare-two-lists-online](https://korextools.com/en/text/compare-two-lists-online)
- **Spanish URL**: [https://korextools.com/es/texto/comparar-dos-listas-online](https://korextools.com/es/texto/comparar-dos-listas-online)
- **Portuguese URL**: [https://korextools.com/pt/texto/comparar-duas-listas-online](https://korextools.com/pt/texto/comparar-duas-listas-online)
- **Summary**: Paste two columns of items, emails, or codes to compute items unique to List A, unique to List B, and shared matches in common instantly.
- **Badge**: Intersection & Exclusives • 100% Local / Intersección y Exclusivos • 100% Local / Interseção e Exclusivos • 100% Local
- **Privacy**: Local RAM execution. Zero data retention.

#### Remove Duplicate Lines Online Free | Eliminar Líneas Duplicadas Online Gratis | Remover Linhas Duplicadas Online Grátis
- **English URL**: [https://korextools.com/en/text/remove-duplicate-lines](https://korextools.com/en/text/remove-duplicate-lines)
- **Spanish URL**: [https://korextools.com/es/texto/eliminar-lineas-duplicadas](https://korextools.com/es/texto/eliminar-lineas-duplicadas)
- **Portuguese URL**: [https://korextools.com/pt/texto/remover-linhas-duplicadas](https://korextools.com/pt/texto/remover-linhas-duplicadas)
- **Summary**: Clean text lists, email rosters, or inventories by automatically stripping all repeated lines and sorting unique records.
- **Badge**: Instant Deduplication • A-Z Sorting / Deduplicación Instantánea • Orden A-Z / Deduplicação Instantânea • Ordem A-Z
- **Privacy**: Local RAM execution. Zero data retention.

#### Remove Line Breaks Online Free | Quitar Saltos de Línea Online Gratis | Remover Quebras de Linha Online Grátis
- **English URL**: [https://korextools.com/en/text/remove-line-breaks-online](https://korextools.com/en/text/remove-line-breaks-online)
- **Spanish URL**: [https://korextools.com/es/texto/quitar-saltos-de-linea](https://korextools.com/es/texto/quitar-saltos-de-linea)
- **Portuguese URL**: [https://korextools.com/pt/texto/remover-quebras-de-linha](https://korextools.com/pt/texto/remover-quebras-de-linha)
- **Summary**: Reconstruct continuous paragraphs from fragmented text copied from PDFs or emails, replacing forced line breaks with spaces, commas, or custom delimiters.
- **Badge**: Join PDF Text • Configurable Delimiter / Unir Texto de PDF • Delimitador Configurable / Juntar Texto de PDF • Separador Configurável
- **Privacy**: Local RAM execution. Zero data retention.

#### Free Word and Character Counter | Contador de Palabras y Caracteres Gratis | Contador de Palavras e Caracteres Grátis
- **English URL**: [https://korextools.com/en/text/word-and-character-counter](https://korextools.com/en/text/word-and-character-counter)
- **Spanish URL**: [https://korextools.com/es/texto/contador-de-palabras-y-caracteres](https://korextools.com/es/texto/contador-de-palabras-y-caracteres)
- **Portuguese URL**: [https://korextools.com/pt/texto/contador-de-palavras-e-caracteres](https://korextools.com/pt/texto/contador-de-palavras-e-caracteres)
- **Summary**: Instantly calculate characters with and without spaces, words, sentences, paragraphs, and estimated reading time. Track exact limits for Twitter (280), Instagram Bio (150), TikTok, and SEO inside your browser.
- **Badge**: Twitter, IG & TikTok • Reading Time / Twitter, IG & TikTok • Tiempo Lectura / Twitter, IG e TikTok • Tempo de Leitura
- **Privacy**: Local RAM execution. Zero data retention.

#### Invisible Character & Blank Space Copy | Carácter Invisible y Espacio en Blanco Copiar | Caractere Invisível e Espaço em Branco para Copiar
- **English URL**: [https://korextools.com/en/text/invisible-character-blank-space](https://korextools.com/en/text/invisible-character-blank-space)
- **Spanish URL**: [https://korextools.com/es/texto/caracter-invisible-espacio-en-blanco](https://korextools.com/es/texto/caracter-invisible-espacio-en-blanco)
- **Portuguese URL**: [https://korextools.com/pt/texto/caractere-invisivel-espaco-em-branco](https://korextools.com/pt/texto/caractere-invisivel-espaco-em-branco)
- **Summary**: Generate and copy blank invisible Unicode characters (Hangul Filler U+3164, Braille U+2800, and Zero-Width Space U+200B). Perfect for empty WhatsApp texts, invisible Free Fire nicknames, and clean Instagram bio line breaks.
- **Badge**: U+3164 • WhatsApp & Free Fire / U+3164 • WhatsApp & Free Fire / U+3164 • WhatsApp e Free Fire
- **Privacy**: Local RAM execution. Zero data retention.

#### Upside Down & Backwards Text Generator | Invertir Texto y Letras al Revés Gratis | Texto de Cabeça para Baixo e Letras ao Contrário
- **English URL**: [https://korextools.com/en/text/upside-down-text-flip](https://korextools.com/en/text/upside-down-text-flip)
- **Spanish URL**: [https://korextools.com/es/texto/invertir-texto-letras-al-reves](https://korextools.com/es/texto/invertir-texto-letras-al-reves)
- **Portuguese URL**: [https://korextools.com/pt/texto/texto-de-cabeca-para-baixo](https://korextools.com/pt/texto/texto-de-cabeca-para-baixo)
- **Summary**: Flip sentences upside down (180°), reverse characters in mirror effect, or reverse word order in real time. One-click copy for viral TikTok comments, Twitter posts, and gaming tags.
- **Badge**: Flipped 180° & Mirror Effect / Boca Abajo (180°) & Efecto Espejo / De Ponta-Cabeça (180°) e Efeito Espelho
- **Privacy**: Local RAM execution. Zero data retention.

#### Strikethrough and Underline Text Generator | Generador de Texto Tachado y Subrayado | Gerador de Texto Riscado e Sublinhado
- **English URL**: [https://korextools.com/en/text/strikethrough-underline-text](https://korextools.com/en/text/strikethrough-underline-text)
- **Spanish URL**: [https://korextools.com/es/texto/generador-texto-tachado-subrayado](https://korextools.com/es/texto/generador-texto-tachado-subrayado)
- **Portuguese URL**: [https://korextools.com/pt/texto/gerador-de-texto-riscado-sublinhado](https://korextools.com/pt/texto/gerador-de-texto-riscado-sublinhado)
- **Summary**: Convert standard text into horizontal strikethrough, double cross-out, underline, decorative waves, or circled bubble letters. One-click copy ready for WhatsApp, Instagram, and Facebook.
- **Badge**: Strike, Double, Underline & Bubbles / Tachado, Doble, Subrayado & Burbujas / Riscado, Duplo, Sublinhado e Bolhas
- **Privacy**: Local RAM execution. Zero data retention.

#### Morse Code Translator with Audio Beeps | Traductor de Código Morse con Audio Online | Tradutor de Código Morse com Áudio Online
- **English URL**: [https://korextools.com/en/text/morse-code-translator-audio](https://korextools.com/en/text/morse-code-translator-audio)
- **Spanish URL**: [https://korextools.com/es/texto/traductor-codigo-morse-audio](https://korextools.com/es/texto/traductor-codigo-morse-audio)
- **Portuguese URL**: [https://korextools.com/pt/texto/tradutor-de-codigo-morse-com-audio](https://korextools.com/pt/texto/tradutor-de-codigo-morse-com-audio)
- **Summary**: Convert text to international Morse code and decode dots and dashes to readable text instantly. Playback telegraphic audio beeps with customizable WPM speed and frequency via native Web Audio.
- **Badge**: Text ⇄ Morse • Web Audio Beeps / Texto ⇄ Morse • Sonido Sintetizado / Texto ⇄ Morse • Som Sintetizado
- **Privacy**: Local RAM execution. Zero data retention.

#### Convert HTML and Markdown to Plain Text | Convertir HTML y Markdown a Texto Plano | Converter HTML e Markdown em Texto Simples
- **English URL**: [https://korextools.com/en/text/convert-html-markdown-plain-text](https://korextools.com/en/text/convert-html-markdown-plain-text)
- **Spanish URL**: [https://korextools.com/es/texto/convertir-html-markdown-a-texto-plano](https://korextools.com/es/texto/convertir-html-markdown-a-texto-plano)
- **Portuguese URL**: [https://korextools.com/pt/texto/converter-html-markdown-em-texto-simples](https://korextools.com/pt/texto/converter-html-markdown-em-texto-simples)
- **Summary**: Strip HTML tags, attributes, scripts, styles, decode web entities, and remove Markdown syntax (headers, bolds, links) to obtain clean plain text ready for social media posts or Word docs.
- **Badge**: Strip Tags • Entities & Breaks / Elimina Etiquetas • Entidades & Saltos / Remove Tags • Entidades e Quebras
- **Privacy**: Local RAM execution. Zero data retention.

#### Clean SEO URL Slug Generator | Generador de Slugs y URLs Amigables SEO | Gerador de Slug e URLs Amigáveis para SEO
- **English URL**: [https://korextools.com/en/text/seo-url-slug-generator](https://korextools.com/en/text/seo-url-slug-generator)
- **Spanish URL**: [https://korextools.com/es/texto/generador-de-slugs-urls-amigables](https://korextools.com/es/texto/generador-de-slugs-urls-amigables)
- **Portuguese URL**: [https://korextools.com/pt/texto/gerador-de-slug-url-amigavel](https://korextools.com/pt/texto/gerador-de-slug-url-amigavel)
- **Summary**: Transform any title with accents, uppercase letters, and symbols into an SEO-tuned web slug with clean hyphens. Customize separators and filter stop words in real time.
- **Badge**: No Accents • Hyphens & Stop Words / Sin Tildes • Guiones & Stop Words / Sem Acentos • Hifens e Stop Words
- **Privacy**: Local RAM execution. Zero data retention.

#### Hashtag and Mention Extractor Online | Extractor de Hashtags y Menciones Online | Extrator de Hashtags e Menções Online
- **English URL**: [https://korextools.com/en/text/hashtag-and-mention-extractor](https://korextools.com/en/text/hashtag-and-mention-extractor)
- **Spanish URL**: [https://korextools.com/es/texto/extractor-de-hashtags-y-menciones](https://korextools.com/es/texto/extractor-de-hashtags-y-menciones)
- **Portuguese URL**: [https://korextools.com/pt/texto/extrator-de-hashtags-e-mencoes](https://korextools.com/pt/texto/extrator-de-hashtags-e-mencoes)
- **Summary**: Paste any long caption or transcript to instantly extract all hashtags (#) and mentions (@). Deduplicate, sort by frequency, and copy them separated by spaces or commas in one click.
- **Badge**: # & @ • Frequency & Deduplication / # y @ • Frecuencia & Sin Duplicados / # e @ • Frequência e Sem Duplicados
- **Privacy**: Local RAM execution. Zero data retention.

### Silo: JSON, CSV & Base64 Data Converters / Conversores de Datos JSON, CSV y Base64 / Conversores de Dados JSON, CSV e Base64

#### Convert JSON to CSV Online | Convertir JSON a CSV y Excel Online | Converter JSON para CSV e Excel Online
- **English URL**: [https://korextools.com/en/data/convert-json-to-csv-online](https://korextools.com/en/data/convert-json-to-csv-online)
- **Spanish URL**: [https://korextools.com/es/datos/convertir-json-a-csv](https://korextools.com/es/datos/convertir-json-a-csv)
- **Portuguese URL**: [https://korextools.com/pt/dados/converter-json-para-csv](https://korextools.com/pt/dados/converter-json-para-csv)
- **Summary**: Paste your JSON payload or drop a .json file to instantly transform it into an Excel-ready CSV spreadsheet without sending your sensitive data to any server.
- **Badge**: Nested Flattening • CSV / Aplanado Automático • Excel / Achatamento Automático • Excel
- **Privacy**: Local RAM execution. Zero data retention.

#### CSV to JSON Converter Online | Pasar de CSV a JSON Online | Converter CSV para JSON Online
- **English URL**: [https://korextools.com/en/data/csv-to-json-converter](https://korextools.com/en/data/csv-to-json-converter)
- **Spanish URL**: [https://korextools.com/es/datos/pasar-de-csv-a-json](https://korextools.com/es/datos/pasar-de-csv-a-json)
- **Portuguese URL**: [https://korextools.com/pt/dados/converter-csv-para-json](https://korextools.com/pt/dados/converter-csv-para-json)
- **Summary**: Transform .csv files or pasted Excel tables into clean, formatted JSON object arrays in milliseconds inside your browser.
- **Badge**: Auto-Type • Client-Side / Detección de Tipos • Local / Detecção de Tipos • Local
- **Privacy**: Local RAM execution. Zero data retention.

#### Image to Base64 Converter Online | Convertir Imagen a Base64 Online | Converter Imagem para Base64 Online
- **English URL**: [https://korextools.com/en/data/image-to-base64](https://korextools.com/en/data/image-to-base64)
- **Spanish URL**: [https://korextools.com/es/datos/imagen-a-base64](https://korextools.com/es/datos/imagen-a-base64)
- **Portuguese URL**: [https://korextools.com/pt/dados/converter-imagem-para-base64](https://korextools.com/pt/dados/converter-imagem-para-base64)
- **Summary**: Drop any image or icon to instantly get its raw Base64 string, Data URI, ready-to-use HTML <img> tag, and CSS background-image snippet.
- **Badge**: Data URI + HTML + CSS / Data URI + HTML + CSS / Data URI + HTML + CSS
- **Privacy**: Local RAM execution. Zero data retention.

#### Base64 to Image Converter (JPG & PNG) | Convertir Base64 a Imagen JPG y PNG | Converter Base64 para Imagem JPG e PNG
- **English URL**: [https://korextools.com/en/data/base64-to-image](https://korextools.com/en/data/base64-to-image)
- **Spanish URL**: [https://korextools.com/es/datos/convertir-imagen-base64-a-jpg](https://korextools.com/es/datos/convertir-imagen-base64-a-jpg)
- **Portuguese URL**: [https://korextools.com/pt/dados/converter-base64-para-imagem](https://korextools.com/pt/dados/converter-base64-para-imagem)
- **Summary**: Paste your Base64 string (with or without the data:image prefix) to preview the image live, inspect pixel dimensions, and download it as JPG or PNG.
- **Badge**: Live Preview + JPG/PNG / Vista Previa + JPG/PNG / Pré-visualização + JPG/PNG
- **Privacy**: Local RAM execution. Zero data retention.

#### Compare Two JSON Files Online (JSON Diff) | Comparar Dos Archivos JSON Online Gratis | Comparar Dois Arquivos JSON Online Grátis
- **English URL**: [https://korextools.com/en/data/compare-two-json-files](https://korextools.com/en/data/compare-two-json-files)
- **Spanish URL**: [https://korextools.com/es/datos/comparar-dos-archivos-json](https://korextools.com/es/datos/comparar-dos-archivos-json)
- **Portuguese URL**: [https://korextools.com/pt/dados/comparar-dois-arquivos-json](https://korextools.com/pt/dados/comparar-dois-arquivos-json)
- **Summary**: Paste or upload two JSON files or strings to detect semantic differences, added, removed, or altered keys with automatic recursive key sorting and syntax validation.
- **Badge**: Recursive Key Sort • 100% Local / Orden Recursivo de Claves • 100% Local / Ordem Recursiva de Chaves • 100% Local
- **Privacy**: Local RAM execution. Zero data retention.

#### Free JSON Formatter and Validator | Formatear y Validar JSON Online Gratis | Formatar e Validar JSON Online Grátis
- **English URL**: [https://korextools.com/en/data/format-validate-json-online](https://korextools.com/en/data/format-validate-json-online)
- **Spanish URL**: [https://korextools.com/es/datos/formatear-validar-json-online](https://korextools.com/es/datos/formatear-validar-json-online)
- **Portuguese URL**: [https://korextools.com/pt/dados/formatar-e-validar-json-online](https://korextools.com/pt/dados/formatar-e-validar-json-online)
- **Summary**: Paste your raw JSON payload to validate syntax with line and column error indicators. Beautify with 2 or 4 spaces or minify into a single line without uploading data to remote servers.
- **Badge**: Indent 2/4 Spaces • Minify • Error Trace / Indenta 2/4 Espacios • Minifica • Detecta Error / Indenta 2/4 Espaços • Minifica • Detecta Erro
- **Privacy**: Local RAM execution. Zero data retention.

#### Base64 Text Encoder & Decoder UTF-8 | Codificar y Decodificar Base64 Texto UTF-8 | Codificar e Decodificar Base64 Texto UTF-8
- **English URL**: [https://korextools.com/en/data/base64-text-encode-decode](https://korextools.com/en/data/base64-text-encode-decode)
- **Spanish URL**: [https://korextools.com/es/datos/codificar-decodificar-base64-texto](https://korextools.com/es/datos/codificar-decodificar-base64-texto)
- **Portuguese URL**: [https://korextools.com/pt/dados/codificar-decodificar-base64-texto](https://korextools.com/pt/dados/codificar-decodificar-base64-texto)
- **Summary**: Encode any plain text string into Base64 format or decode Base64 strings to readable text in real time. Full international UTF-8 support handles accents and emojis direct.
- **Badge**: Full UTF-8 • Accents & Emojis • Private / UTF-8 Completo • Tildes & Emojis • Privado / UTF-8 Completo • Acentos e Emojis • Privado
- **Privacy**: Local RAM execution. Zero data retention.

#### Decode JWT Token Online Free Debugger | Decodificar Token JWT Online y Debugger | Decodificar Token JWT Online e Debugger
- **English URL**: [https://korextools.com/en/data/decode-jwt-token-online](https://korextools.com/en/data/decode-jwt-token-online)
- **Spanish URL**: [https://korextools.com/es/datos/decodificar-token-jwt-online](https://korextools.com/es/datos/decodificar-token-jwt-online)
- **Portuguese URL**: [https://korextools.com/pt/dados/decodificar-token-jwt-online](https://korextools.com/pt/dados/decodificar-token-jwt-online)
- **Summary**: Paste your JSON Web Token (JWT) to inspect Header algorithms, Payload claims, and Signature verification blocks. Automatically converts unix timestamps (exp, iat) into human dates without network transmission.
- **Badge**: 100% Local • Header & Payload • UTC Dates / 100% Local • Header & Payload • Fechas UTC / 100% Local • Header e Payload • Datas UTC
- **Privacy**: Local RAM execution. Zero data retention.

#### Free URL Encoder and Decoder Tool | Codificar y Decodificar URLs Online Gratis | Codificar e Decodificar URLs Online Grátis
- **English URL**: [https://korextools.com/en/data/url-encoder-decoder-online](https://korextools.com/en/data/url-encoder-decoder-online)
- **Spanish URL**: [https://korextools.com/es/datos/codificar-decodificar-url-online](https://korextools.com/es/datos/codificar-decodificar-url-online)
- **Portuguese URL**: [https://korextools.com/pt/dados/codificar-decodificar-url-online](https://korextools.com/pt/dados/codificar-decodificar-url-online)
- **Summary**: Convert special characters into safe percent-encoding (%20, %26, %3D) for URL parameters, or decode complex campaign strings into human-readable text in real time.
- **Badge**: Percent-Encoding • Clean UTM Params / Percent-Encoding • Limpia Parámetros UTM / Percent-Encoding • Limpa Parâmetros UTM
- **Privacy**: Local RAM execution. Zero data retention.

#### Convert XML to JSON and JSON to XML Free | Convertir XML a JSON y JSON a XML Online | Converter XML para JSON e JSON para XML Online
- **English URL**: [https://korextools.com/en/data/convert-xml-to-json-online](https://korextools.com/en/data/convert-xml-to-json-online)
- **Spanish URL**: [https://korextools.com/es/datos/convertir-xml-a-json-online](https://korextools.com/es/datos/convertir-xml-a-json-online)
- **Portuguese URL**: [https://korextools.com/pt/dados/converter-xml-para-json-online](https://korextools.com/pt/dados/converter-xml-para-json-online)
- **Summary**: Transform XML documents into clean JSON or convert JSON structures back into formatted XML. Ideal for e-invoice auditing, RSS feeds, and legacy SOAP services without cloud uploads.
- **Badge**: E-Invoicing • Attributes & Nodes / Facturación Electrónica • Atributos & Nodos / Nota Fiscal XML • Atributos e Nós
- **Privacy**: Local RAM execution. Zero data retention.

#### Hash Generator SHA256 and MD5 Online Tool | Generador de Hash SHA256 y MD5 Online | Gerador de Hash SHA256 e MD5 Online
- **English URL**: [https://korextools.com/en/data/hash-generator-sha256-md5](https://korextools.com/en/data/hash-generator-sha256-md5)
- **Spanish URL**: [https://korextools.com/es/datos/generador-hash-sha256-md5](https://korextools.com/es/datos/generador-hash-sha256-md5)
- **Portuguese URL**: [https://korextools.com/pt/dados/gerador-de-hash-sha256-md5](https://korextools.com/pt/dados/gerador-de-hash-sha256-md5)
- **Summary**: Generate cryptographic checksums (hashes) instantly for any text or file. Computes SHA-256, SHA-512, SHA-1, and MD5 via native browser Web Crypto API without uploading data.
- **Badge**: SHA-256, SHA-512, SHA-1 & MD5 • Web Crypto / SHA-256, SHA-512, SHA-1 & MD5 • Web Crypto / SHA-256, SHA-512, SHA-1 e MD5 • Web Crypto
- **Privacy**: Local RAM execution. Zero data retention.

#### Convert YAML to JSON and JSON to YAML | Convertir YAML a JSON y JSON a YAML Online | Converter YAML para JSON e JSON para YAML Online
- **English URL**: [https://korextools.com/en/data/convert-yaml-to-json-online](https://korextools.com/en/data/convert-yaml-to-json-online)
- **Spanish URL**: [https://korextools.com/es/datos/convertir-yaml-a-json-online](https://korextools.com/es/datos/convertir-yaml-a-json-online)
- **Portuguese URL**: [https://korextools.com/pt/dados/converter-yaml-para-json-online](https://korextools.com/pt/dados/converter-yaml-para-json-online)
- **Summary**: Transform YAML files into structured JSON or convert JSON objects to clean YAML with strict 2-space indentation. Designed for Kubernetes manifests, Docker Compose, GitHub Actions, and OpenAPI Swagger.
- **Badge**: Kubernetes & Docker Compose • OpenAPI / Kubernetes & Docker Compose • Swagger / OpenAPI / Kubernetes e Docker Compose • Swagger / OpenAPI
- **Privacy**: Local RAM execution. Zero data retention.

#### Interactive JSON Tree Viewer Online Free | Visor de Árbol JSON Interactivo Online | Visualizador de Árvore JSON Interativo Online
- **English URL**: [https://korextools.com/en/data/interactive-json-tree-viewer](https://korextools.com/en/data/interactive-json-tree-viewer)
- **Spanish URL**: [https://korextools.com/es/datos/visor-arbol-json-interactivo](https://korextools.com/es/datos/visor-arbol-json-interactivo)
- **Portuguese URL**: [https://korextools.com/pt/dados/visualizador-de-arvore-json-interativo](https://korextools.com/pt/dados/visualizador-de-arvore-json-interativo)
- **Summary**: Visualize deeply nested JSON payloads in a collapsible interactive hierarchy tree. Color-coded syntax highlights data types (strings, numbers, booleans, arrays) with live key searching.
- **Badge**: Collapsible Nodes • Type Colors • Search / Nodos Colapsables • Tipos por Color • Búsqueda / Nós Recolhíveis • Tipos por Cor • Busca
- **Privacy**: Local RAM execution. Zero data retention.