Herramientas de compresión

Acorta claves JSON verbosas a una sola letra o formas abreviadas - muestra la reducción de tamaño y genera un archivo de mapeo de claves descargable para restaurarlas. Acortador de claves JSON online gratuito.

Compara el tamaño en bytes de JSON frente a la codificación MessagePack para cualquier carga - muestra el ahorro exacto, desglose por tipo y vista previa hexadecimal de MessagePack. Comparación JSON vs MessagePack online gratuita.

Descomprime cargas GZIP+Base64, DEFLATE+Base64 y LZ-String de vuelta a texto legible - es compatible con las tres variantes de LZ-String. Descompresor de cadenas online gratuito.

Extrae archivos de cualquier archivo ZIP en el navegador - explora el contenido, previsualiza archivos de texto y descárgalos individualmente o todos a la vez. Extractor ZIP online gratuito, sin registro.

Extrae archivos de archivadores .tar.gz y .tgz en el navegador - explora el contenido, previsualiza archivos de texto y descárgalos individualmente o todos a la vez. Extractor TAR.GZ online gratuito, sin registro.

Introduce los tamaños original y comprimido para calcular el ratio de compresión, el ahorro de espacio, el porcentaje de reducción, el factor de expansión y los bits por byte. Admite unidades B/KB/MB/GB con 6 ejemplos predefinidos. Calculadora de ratio de compresión online gratuita, sin registro.

Upload any file and see its compressibility score - runs real GZIP, DEFLATE, and LZ77 compression with Shannon entropy analysis. Free online file compression ratio analyzer.

Calculate the Shannon entropy of any text or file - shows theoretical compression ceiling, incompressibility score (0-100), byte frequency distribution, and top symbols. Free online entropy analyzer, no signup required.

Calculate exactly how much size Base64 encoding adds - shows raw vs Base64 vs Base64+GZIP size. Supports text input, file upload, and Base64 decode modes. Free online Base64 size calculator.

Paste HTTP response headers and body to see uncompressed vs GZIP vs Brotli size, validate Content-Encoding, check Vary headers, and get compression recommendations. Free online HTTP response size analyzer, no signup required.

Generate the correct Content-Encoding, Vary, and Cache-Control headers for GZIP, Brotli, and Zstandard server responses - with Nginx, Apache, Express.js, and Cloudflare config snippets. Free online content-encoding header generator.

Paste an Accept-Encoding request header and decode which compression algorithms the client supports, q-values, and the optimal Content-Encoding to serve. Free online accept-encoding header analyzer, no signup required.

Upload any image to get a compression-guided recommendation for JPEG, WebP, AVIF, or PNG - shows estimated size savings, quality score, and browser support for each format. Free online image format picker, no signup required.

Upload original and compressed images to calculate SSIM score, PSNR, and MSE - quantifies quality loss from compression with per-channel R/G/B breakdown. Free online image SSIM quality scorer, no signup required.

Estimate Brotli compression savings for any text payload and compare against GZIP and DEFLATE - shows exact byte savings, compression ratio, and bandwidth impact at scale. Free online Brotli compression estimator.

Estimate how small a set of files will compress to as ZIP - calculates Shannon entropy per file and predicts DEFLATE compression ratio. Free online ZIP size estimator, no signup required.

Paste any text and instantly see GZIP compressed size, compression ratio, and byte savings - useful for API payload planning and HTTP transfer optimization. Free online GZIP ratio checker.

Compare GZIP and Brotli compression savings for any text payload side by side - exact GZIP results via CompressionStream API and estimated Brotli results based on RFC 7932 benchmarks. Free online GZIP vs Brotli estimator.

Enter your service worker precache URL list to estimate total cache storage, GZIP and Brotli sizes per asset type, and get compression recommendations. Free online service worker cache size estimator, no signup required.

Convert between bytes, KB, MB, GB, TB, and binary units (KiB, MiB, GiB, TiB) with decimal and binary mode toggle. Supports bits, bytes, and all standard storage units. Free online file size converter, no signup required.

Select your file type and use case to get the best compression algorithm recommendation - covers GZIP, Brotli, ZIP, WOFF2, and format-specific codecs for 25+ file types. Free online compression recommender, no signup required.

Encode and decode text using Run-Length Encoding - shows compression ratio, longest run, and a verdict on whether RLE is effective for your input. Free online RLE encoder decoder, no signup required.

Model an API endpoint's response payload and estimate compressed wire size across GZIP and Brotli at various client loads - shows daily bandwidth savings with cache hit rate modeling. Free online REST API response size estimator.

Generate optimized Nginx GZIP compression configuration with recommended MIME types, compression level, proxy settings, and gzip_vary - for http, server, or location blocks. Free online Nginx GZIP config generator, no signup required.

Generate Next.js next.config.js or next.config.mjs with optimized GZIP and Brotli compression settings - supports Vercel, Node.js, Docker, and static export deployments with deployment-specific warnings. Free online Next.js compression config generator.

Generate Cloudflare-compatible compression settings - Brotli, Auto Minify, caching rules, Cache-Control headers, and a Worker script for custom compression headers. Covers all Cloudflare plans. Free online Cloudflare compression guide, no signup required.

Generate vite-plugin-compression configuration for pre-compressing Vite build assets to GZIP and Brotli - produces vite.config.ts with framework-specific imports and nginx serving config. Free online Vite compression config generator, no signup required.

Build Cache-Control headers for compressed assets - sets max-age, s-maxage, stale-while-revalidate, and Vary: Accept-Encoding correctly. Config snippets for Nginx, Apache, Cloudflare, CloudFront, Fastly, and Vercel. Free online CDN cache-control header builder, no signup required.

Generate Express.js compression middleware configuration using the compression npm package - configurable level, threshold, custom filter, and Vary header. CommonJS, ESM, and TypeScript output. Free online Express.js compression middleware generator.

Generate a Lambda@Edge Node.js function for CloudFront that adds Brotli and GZIP compression - includes IAM trust policy, IAM execution policy, and AWS CLI deployment steps. Free online Lambda@Edge compression script generator.

Generate CloudFront behavior configuration for Brotli and GZIP compression - cache policies, response headers policies, and correct Cache-Control headers. Console steps, Terraform, CloudFormation, CDK, and AWS CLI output. Free online CloudFront compression config guide, no signup required.

Generate Vercel configuration for serving compressed static assets with correct Cache-Control and Vary headers - vercel.json, next.config.js, or Edge Middleware output. Free online Vercel edge compression config generator.

Bundle multiple folders into a ZIP archive that preserves your complete directory hierarchy - uses webkitdirectory folder picker and DEFLATE level 9 compression via fflate. Free online multi-folder ZIP creator.

Bundle and compress multiple files into a .tar.gz archive entirely in the browser using fflate - GZIP level 9 compression, POSIX ustar format, instant download. Free online TAR.GZ creator.

Compress any single file to .gz format using the native browser CompressionStream API - zero server needed. Shows original size, compressed size, and compression ratio. Free online GZIP compressor.

Compress any binary file - executable, database, firmware, or document - to ZIP (fflate, levels 1-9) or GZIP (CompressionStream) in the browser. Shows compression ratio. Free online binary file compressor.

Open and browse the contents of any ZIP archive without extracting - see file names, sizes, compression ratios, and methods in a sortable, searchable table. Free online ZIP file inspector.

Merge multiple ZIP archives into a single ZIP in the browser - deduplicates files with identical paths (first-wins) and shows a full conflict report. Free online ZIP merger.

Convert a ZIP archive to TAR.GZ format entirely in your browser - extracts ZIP contents and re-packages them as a .tar.gz using fflate GZIP level 9. Free online ZIP to TAR.GZ converter.

Split a large ZIP archive into multiple smaller ZIP parts of a configurable max size - entirely in your browser using JSZip. Presets from 1 MB to 100 MB, custom KB/MB input, independent extractable parts. Free online ZIP splitter.

Compress data using raw DEFLATE algorithm and view output as binary download, hex string, or Base64 encoded string - entirely in your browser using fflate. Free online DEFLATE compressor.

Compress text using LZ77/LZ-String - ideal for localStorage, cookies, and URL state. Base64, UTF-16 (localStorage-optimised), and URI Component output. Decompression mode included. Free online LZ-String compressor.

Compress a JSON object or string before storing in localStorage - shows space saved, UTF-16 char count, and % of 5 MB browser limit used. Ready-to-use code snippet included. Free online localStorage compression helper.

Estimate IndexedDB storage usage for JSON payloads using the structured clone algorithm - shows how much LZ-String compression reduces quota usage. Four-way size comparison with code snippet. Free online IndexedDB payload size estimator.

Compress cookie value strings using LZ-String and instantly see whether the compressed value fits within the 4096-byte browser cookie limit. Real-time size bar, Set-Cookie header preview, Base64 and URI Component output. Free online cookie compressor.

Compress any text with GZIP and encode to Base64 - produces a URL-safe compressed string for query params, cookies, and localStorage. Free online text compressor.

Compress CSS by removing whitespace, comments, redundant semicolons, and applying shorthand optimizations - hex color normalisation, zero-value shortening, font-weight shorthand. Free online CSS compressor.

Maximum HTML compression - removes all optional whitespace, collapses boolean attributes, strips comments, removes optional closing tags, and inlines style/script whitespace. Free online aggressive HTML compressor.

Compress inline SVGs, base64 images, and JSON data blocks embedded in HTML - shows per-asset savings and replaces each asset in the output HTML. Free online inline asset compressor.

Advanced CSS compression - merges duplicate selectors, removes vendor prefix duplicates, collapses shorthand properties, and strips all whitespace and comments. Free online advanced CSS compressor.

Paste any JSON API response and get actionable suggestions - remove nulls, strip empty arrays/objects, shorten verbose keys. Shows exact byte savings per optimization and GZIP wire size. Free online API payload size optimizer, no signup required.

Compress Server-Sent Events data fields using LZ-String Base64 encoding - reduces streaming bandwidth for JSON-heavy event payloads. Shows per-event byte savings. Free online SSE payload compressor, no signup required.

Compress GeoJSON files by reducing coordinate decimal precision and removing null properties - shows size vs accuracy tradeoff. Supports all geometry types. Free online GeoJSON compressor.

Paste a webpack stats JSON and visualize module sizes - highlights which dependencies contribute most to bundle size with optimization recommendations. Free online webpack bundle size visualizer.

Compress TopoJSON files by reducing coordinate decimal precision - shows file size at 6 precision levels (1-6 decimal places) with null property removal. Free online TopoJSON compressor.

Input HTML, CSS, and JS content and estimate total uncompressed and GZIP-compressed page transfer size - with per-asset breakdown and performance budget check. Free online web page size estimator.

Upload a favicon set and analyze total size - recommends removing redundant sizes and switching to SVG favicon. Identifies obsolete ICO and PNG sizes. Free online favicon bundle analyzer.

Extract critical above-the-fold CSS from HTML and compress it for inline embedding - eliminates render-blocking CSS and improves LCP scores. Free online critical CSS extractor, no signup required.

Upload a CSS sprite sheet PNG and recompress it using color palette quantization - shows KB savings for legacy sprite setups. Free online image sprite compressor, no signup required.

Compress HTML email code by removing whitespace, comments, and redundant inline styles - stays under Gmail 102 KB limit. Live size indicator. Free online email HTML compressor, no signup required.

Compress SVG files containing SMIL animations - strips redundant animation keyframes, removes editor metadata (Inkscape/Illustrator/Sketch), and optimizes path data. Free online SVG animation compressor, no signup required.

Upload a WebAssembly .wasm file and analyze its section sizes - shows which sections (code, data, debug) contribute most to file size with optimization recommendations. Free online WASM binary analyzer, no signup required.

Compress JavaScript and CSS source map (.map) files with GZIP and Brotli - shows size savings, parses source map metadata, and generates nginx, Apache, and CDN server configuration. Free online source map compressor, no signup required.

Compress RSS and Atom XML feeds by removing whitespace and comments - reduces feed size for CDN caching cost and faster subscriber polling. Supports RSS 2.0 and Atom. Free online RSS feed compressor, no signup required.

Compress Android app assets - lossless PNG, JPEG/WebP at your quality, safe XML minification - with per-asset savings and original file names. Free online APK asset compressor, no signup required.

Compress and resize images to @1x, @2x, and @3x React Native asset densities and download as ZIP. Free online React Native asset compressor, no signup required.

Compress and package images into Flutter asset density variants (1x, 2x, 3x) with the correct directory structure and pubspec.yaml snippet output. Free online Flutter asset compressor, no signup required.

Calculate PWA precache size from a URL list and show which assets should be excluded to meet your cache budget. Free online PWA cache budget calculator, no signup required.

Compress all web assets (HTML, CSS, JS, JSON-LD, SVGs, base64 images) as a bundle optimized for 3G mobile network delivery - shows per-asset savings and estimated load time improvement. Free online mobile web performance compressor.

Convert OTF fonts to WOFF2 format for web delivery - Brotli compression reduces font size by 30-50% with full OpenType feature support. Free online otf to woff2 converter, no signup required.

Upgrade WOFF fonts to WOFF2 for 30% smaller file sizes and better browser compression support - uses Brotli compression. Free online WOFF to WOFF2 compressor, no signup required.

Compress icon fonts (Font Awesome, Material Icons, Bootstrap Icons) to only the icons you actually use - rebuilds the cmap table to remove unused glyph mappings. Free online icon font compressor, no signup required.

Reduce a variable font to a static instance - freeze axis values (weight, width, slant) and strip variable tables (fvar, gvar, HVAR) for a smaller static font. Free online variable font instancer, no signup required.

Enter a Google Font name and character set - downloads a locally-hostable WOFF2 subset for GDPR-safe self-hosting. Generates @font-face CSS snippet instantly. Free online Google Fonts subset downloader, no signup required.

Upload a TTF or OTF font and compare file sizes across TTF, WOFF, WOFF2, and subsetted WOFF2 side by side - with a download button for the TTF, WOFF, and WOFF2 files. Free online font compression comparison tool, no signup required.

Strip TrueType hinting instructions (cvt, fpgm, prep, hdmx, LTSH, VDMX, gasp) from TTF and OTF fonts - reduces file size by 2-15% with no visual impact on modern high-DPI screens. Free online font hinting remover, no signup required.

Upload any font file (TTF, OTF, WOFF, WOFF2) and see file size, glyph count, table breakdown, OpenType feature list, and compression opportunity. Free online font file size analyzer.

Free TTF to WOFF converter online. Convert TTF and OTF font files to WOFF format with DEFLATE compression - 20-40% smaller than TTF. Batch convert multiple fonts, no signup required.

Elimina todos los glifos no latinos de fuentes TTF y OTF: reduce fuentes grandes CJK o multiscript entre un 80% y un 95% para sitios solo en inglés. Analiza binarios OpenType en el navegador. Reductor de fuentes solo latinas online gratis.

Convert TTF and OTF fonts to WOFF format for legacy browser compatibility - lossless repackaging, batch conversion with ZIP download. Free online TTF to WOFF converter, no signup required.