# ToolkitMate > 124 free online tools for PDF, images, video, audio, documents and developers. Every tool runs entirely in the user's browser (JavaScript + WebAssembly): files and text are never uploaded, no sign-up, no API key. ## Start here - [Home](https://toolkitmate.com/): all tools, grouped by category - [Generate PDFs from AI chats](https://toolkitmate.com/ai): the generate_pdf link format for assistants ## Actions for AI assistants - generate_pdf — give the user a ready-made PDF with one link. The document goes in the URL fragment (after #), which is never sent to a server; the PDF is built in the user's browser. - Markdown: `https://toolkitmate.com/tools/markdown-to-pdf#md={URL-encoded Markdown}&name={file name}.pdf&auto=1` - HTML: `https://toolkitmate.com/tools/html-to-pdf#html={URL-encoded HTML}&name={file name}.pdf&auto=1` - Long documents: use `mdz=` / `htmlz=` with deflate-raw compressed, base64url-encoded content. `auto=1` downloads immediately; omit it to show a preview. - Details and examples: https://toolkitmate.com/ai - Any other tool: link the user to its page below; they drop their file there and it is processed locally. ## PDF tools - [Merge PDF](https://toolkitmate.com/tools/pdf-merge): Combine multiple PDFs into one file. - [Split PDF](https://toolkitmate.com/tools/pdf-split): Extract pages or split a PDF into separate files. - [Rotate PDF](https://toolkitmate.com/tools/pdf-rotate): Rotate all or selected pages of a PDF. - [PDF Compressor](https://toolkitmate.com/tools/pdf-compressor): Shrink scanned or image-heavy PDFs. - [PDF to JPG](https://toolkitmate.com/tools/pdf-to-jpg): Convert PDF pages to JPG or PNG images. - [JPG to PDF](https://toolkitmate.com/tools/jpg-to-pdf): Convert JPG, PNG and other images into a single PDF. - [Add Watermark to PDF](https://toolkitmate.com/tools/pdf-watermark): Stamp text watermarks on every PDF page. - [Add Page Numbers to PDF](https://toolkitmate.com/tools/pdf-page-numbers): Number PDF pages with custom position and format. - [Sign PDF](https://toolkitmate.com/tools/pdf-sign): Draw or type your signature and place it on a PDF. - [Organize PDF Pages](https://toolkitmate.com/tools/pdf-organizer): Reorder, delete and rotate PDF pages with thumbnails. - [PDF to Text](https://toolkitmate.com/tools/pdf-to-text): Extract text from a PDF. ## Office tools - [Word to PDF](https://toolkitmate.com/tools/word-to-pdf): Convert DOCX documents to PDF. - [Word to HTML / Markdown](https://toolkitmate.com/tools/word-to-html): Convert DOCX to clean HTML or Markdown. - [Markdown to Word](https://toolkitmate.com/tools/markdown-to-word): Convert Markdown to an editable DOCX document. - [Excel to CSV / JSON](https://toolkitmate.com/tools/excel-to-csv): View XLSX / XLS / ODS sheets and export them as CSV or JSON. - [CSV / JSON to Excel](https://toolkitmate.com/tools/csv-to-excel): Convert CSV or JSON data into an XLSX spreadsheet. ## Image tools - [Image Resizer](https://toolkitmate.com/tools/image-resizer): Resize images to exact dimensions or by percentage. - [Image Compressor](https://toolkitmate.com/tools/image-compressor): Compress JPG, PNG and WebP images in bulk. - [Image Converter](https://toolkitmate.com/tools/image-converter): Convert images between PNG, JPG and WebP. - [Image Grid Splitter](https://toolkitmate.com/tools/image-grid-splitter): Split an image into a grid of tiles (e.g. for Instagram). - [HEIC to JPG Converter](https://toolkitmate.com/tools/heic-to-jpg): Convert iPhone HEIC / HEIF photos to JPG or PNG. - [Background Remover](https://toolkitmate.com/tools/background-remover): Remove image backgrounds with AI, right in your browser. - [EXIF Viewer & Remover](https://toolkitmate.com/tools/exif-remover): View photo metadata (camera, GPS) and strip it before sharing. - [Image Cropper](https://toolkitmate.com/tools/image-cropper): Crop images freely or to a fixed aspect ratio. - [Rotate & Flip Image](https://toolkitmate.com/tools/image-rotate-flip): Rotate images by any angle and flip them horizontally or vertically. - [Image to SVG Converter](https://toolkitmate.com/tools/image-to-svg): Trace PNG / JPG images into scalable SVG vectors. - [Favicon Generator](https://toolkitmate.com/tools/favicon-generator): Create favicon.ico and app icons in every size from one image. - [Add Watermark to Image](https://toolkitmate.com/tools/image-watermark): Add text or logo watermarks to images in bulk. - [Meme Generator](https://toolkitmate.com/tools/meme-generator): Add top and bottom captions to any image. - [Color Palette Extractor](https://toolkitmate.com/tools/color-palette-extractor): Extract the dominant colors from an image. - [Image OCR](https://toolkitmate.com/tools/image-ocr): Extract text from images in 100+ languages. ## Video tools - [MP4 to MP3 (Video to Audio)](https://toolkitmate.com/tools/mp4-to-mp3): Extract the audio from MP4, MOV or WebM videos as MP3, M4A or WAV. - [Video Cropper / Trimmer](https://toolkitmate.com/tools/video-cropper): Trim a video by time range and crop its frame. - [Video to GIF / WebP](https://toolkitmate.com/tools/video-to-gif): Turn video clips into animated GIF or WebP. - [Video Converter](https://toolkitmate.com/tools/video-converter): Convert videos between MP4, WebM and MOV — hardware accelerated. - [Rotate & Flip Video](https://toolkitmate.com/tools/video-rotate-flip): Rotate a video 90° / 180° or mirror it. - [Change Video Speed](https://toolkitmate.com/tools/video-speed): Speed up or slow down a video. - [Merge Videos](https://toolkitmate.com/tools/video-merger): Join multiple video clips into one. - [Mute Video](https://toolkitmate.com/tools/mute-video): Remove the audio track from a video. - [Video Compressor](https://toolkitmate.com/tools/video-compressor): Reduce video file size with adjustable quality. ## Audio tools - [Audio Cutter](https://toolkitmate.com/tools/audio-cutter): Trim MP3, WAV and other audio files with a waveform editor. - [Audio Converter](https://toolkitmate.com/tools/audio-converter): Convert audio between MP3, WAV, M4A, OGG and FLAC. - [Change Audio Speed](https://toolkitmate.com/tools/audio-speed): Speed up or slow down audio without changing pitch. - [Voice Recorder](https://toolkitmate.com/tools/voice-recorder): Record audio from your microphone and download it. - [Screen Recorder](https://toolkitmate.com/tools/screen-recorder): Record your screen, a window or a tab — with optional microphone. - [Speech to Text](https://toolkitmate.com/tools/speech-to-text): Transcribe audio and video to text with Whisper AI. - [Text to Speech](https://toolkitmate.com/tools/text-to-speech): Turn text into natural-sounding speech and download as WAV. ## Design tools - [QR Code Generator](https://toolkitmate.com/tools/qr-code-generator): Create QR codes for URLs, text, Wi-Fi and more. - [Barcode Generator](https://toolkitmate.com/tools/barcode-generator): Generate CODE128, EAN-13, UPC and other barcodes. - [SVG Optimizer](https://toolkitmate.com/tools/svg-optimizer): Minify and clean SVG files with SVGO. - [Color Converter](https://toolkitmate.com/tools/color-converter): Convert colors between HEX, RGB, HSL and more. - [QR Code Scanner](https://toolkitmate.com/tools/qr-code-scanner): Scan QR codes from your camera or an image. - [QR Code with Logo](https://toolkitmate.com/tools/qr-code-with-logo): Design styled QR codes with your logo, colors and dot shapes. - [SVG to PNG](https://toolkitmate.com/tools/svg-to-png): Convert SVG to PNG / JPG / WebP at any size. - [Mermaid Diagram Editor](https://toolkitmate.com/tools/mermaid-editor): Create flowcharts, sequence diagrams and more from text. - [LaTeX Equation Editor](https://toolkitmate.com/tools/latex-editor): Write LaTeX math and export it as PNG or SVG. - [Code Screenshot](https://toolkitmate.com/tools/code-screenshot): Turn code into beautiful, shareable images. - [Color Palette Generator](https://toolkitmate.com/tools/color-palette-generator): Generate harmonious color palettes and scales. ## Text tools - [Markdown Previewer](https://toolkitmate.com/tools/markdown-previewer): Write Markdown and see a live HTML preview. - [Text Diff](https://toolkitmate.com/tools/text-diff): Compare two texts and highlight the differences. - [Markdown to PDF](https://toolkitmate.com/tools/markdown-to-pdf): Convert Markdown into a downloadable PDF. - [HTML to PDF](https://toolkitmate.com/tools/html-to-pdf): Render HTML code into a PDF document. - [Word Counter](https://toolkitmate.com/tools/word-counter): Count words, characters, sentences and reading time. - [Case Converter](https://toolkitmate.com/tools/case-converter): Convert text to UPPER, lower, Title, camelCase, snake_case and more. - [Simplified ⇄ Traditional Chinese](https://toolkitmate.com/tools/chinese-converter): 简体中文与繁体中文互相转换（含台湾、香港用词）。 - [Chinese to Pinyin](https://toolkitmate.com/tools/chinese-to-pinyin): 汉字转拼音，支持声调、多音字和首字母。 - [Remove Duplicate Lines](https://toolkitmate.com/tools/remove-duplicate-lines): Remove duplicate lines and empty lines from text. - [Sort Lines](https://toolkitmate.com/tools/sort-lines): Sort lines alphabetically, numerically, by length, reverse or shuffle. - [Find and Replace](https://toolkitmate.com/tools/find-and-replace): Find and replace text, with regex and case options. - [Morse Code Translator](https://toolkitmate.com/tools/morse-code-translator): Translate text to Morse code and back, with audio playback. - [Text to Binary](https://toolkitmate.com/tools/text-to-binary): Convert text to binary, hex or decimal bytes and back. ## Calculator tools - [Unit Converter](https://toolkitmate.com/tools/unit-converter): Convert length, weight, temperature, area, volume, speed and data units. - [Percentage Calculator](https://toolkitmate.com/tools/percentage-calculator): Calculate percentages, percentage change and ratios. - [Age Calculator](https://toolkitmate.com/tools/age-calculator): Calculate exact age in years, months and days. - [Date Difference Calculator](https://toolkitmate.com/tools/date-difference): Count days between dates, or add / subtract days. - [BMI Calculator](https://toolkitmate.com/tools/bmi-calculator): Calculate Body Mass Index in metric or imperial units. - [Loan / Mortgage Calculator](https://toolkitmate.com/tools/loan-calculator): Monthly payment, total interest and amortization schedule. - [Compound Interest Calculator](https://toolkitmate.com/tools/compound-interest-calculator): Project savings growth with compound interest and contributions. - [Discount & Tip Calculator](https://toolkitmate.com/tools/discount-calculator): Work out sale prices, tips and bill splits. - [Time Zone Converter](https://toolkitmate.com/tools/time-zone-converter): Convert a time across world time zones. - [Number Base Converter](https://toolkitmate.com/tools/number-base-converter): Convert between binary, octal, decimal, hex and Roman numerals. ## SEO tools - [Meta Tag Generator](https://toolkitmate.com/tools/meta-tag-generator): Generate HTML meta tags for search engines. - [Open Graph Generator](https://toolkitmate.com/tools/open-graph-generator): Generate Open Graph tags with a live share preview. - [Twitter Card Generator](https://toolkitmate.com/tools/twitter-card-generator): Generate X / Twitter card meta tags with preview. - [Slug Generator](https://toolkitmate.com/tools/slug-generator): Turn any title into a clean, URL-friendly slug. ## Developer tools - [UUID Generator](https://toolkitmate.com/tools/uuid-generator): Generate random UUID v4 / v7 identifiers in bulk. - [Base64 Encoder / Decoder](https://toolkitmate.com/tools/base64): Encode or decode text and files to and from Base64. - [URL Encoder / Decoder](https://toolkitmate.com/tools/url-encoder): Percent-encode or decode URLs and query strings. - [JSON Formatter](https://toolkitmate.com/tools/json-formatter): Format, validate and minify JSON. - [Hash Generator](https://toolkitmate.com/tools/hash-generator): Compute MD5, SHA-1, SHA-256/384/512, SHA-3, CRC32 and xxHash64 of text or files — even multi-GB files. - [JWT Decoder](https://toolkitmate.com/tools/jwt-decoder): Decode JSON Web Token header and payload. - [Unix Timestamp Converter](https://toolkitmate.com/tools/timestamp-converter): Convert Unix timestamps to dates and back. - [Password Generator](https://toolkitmate.com/tools/password-generator): Generate strong random passwords and passphrases, with strength check. - [Regex Tester](https://toolkitmate.com/tools/regex-tester): Test regular expressions with live match highlighting and replace. - [Cron Expression Explainer](https://toolkitmate.com/tools/cron-explainer): Explain crontab expressions in plain English and list next run times. - [Bcrypt Generator & Checker](https://toolkitmate.com/tools/bcrypt-generator): Hash passwords with bcrypt and verify hashes. - [TOTP / 2FA Code Generator](https://toolkitmate.com/tools/totp-generator): Generate and verify time-based one-time passwords from a secret. - [HTML Entity Encoder / Decoder](https://toolkitmate.com/tools/html-entities): Escape and unescape HTML entities. - [User Agent Parser](https://toolkitmate.com/tools/user-agent-parser): Parse a user-agent string into browser, OS and device. - [Lorem Ipsum Generator](https://toolkitmate.com/tools/lorem-ipsum-generator): Generate placeholder paragraphs, sentences or words. - [Fake Data Generator](https://toolkitmate.com/tools/fake-data-generator): Generate realistic test data as JSON, CSV or SQL. - [JSON to YAML](https://toolkitmate.com/tools/json-to-yaml): Convert JSON to YAML. - [YAML to JSON](https://toolkitmate.com/tools/yaml-to-json): Convert YAML to JSON. - [JSON to XML](https://toolkitmate.com/tools/json-to-xml): Convert JSON to XML. - [XML to JSON](https://toolkitmate.com/tools/xml-to-json): Convert XML to JSON. - [JSON to CSV](https://toolkitmate.com/tools/json-to-csv): Convert a JSON array to CSV, and CSV back to JSON. - [TOML ⇄ JSON Converter](https://toolkitmate.com/tools/toml-json-converter): Convert between TOML and JSON. - [XML Formatter](https://toolkitmate.com/tools/xml-formatter): Pretty-print, minify and validate XML. - [JSON to TypeScript](https://toolkitmate.com/tools/json-to-typescript): Generate TypeScript, Go, Python, Java, C# and Rust types from JSON. - [SQL Formatter](https://toolkitmate.com/tools/sql-formatter): Format SQL for MySQL, PostgreSQL, SQLite and more. - [Code Formatter (Prettier)](https://toolkitmate.com/tools/code-formatter): Format JavaScript, TypeScript, CSS, HTML, Markdown, YAML and GraphQL. - [JavaScript Minifier](https://toolkitmate.com/tools/js-minifier): Minify JavaScript with Terser. - [CSS Minifier](https://toolkitmate.com/tools/css-minifier): Minify and optimize CSS. - [HTML Minifier](https://toolkitmate.com/tools/html-minifier): Minify HTML including inline CSS and JS. ## Data tools - [Bulk File Compressor (ZIP)](https://toolkitmate.com/tools/zip-files): Pack many files into a ZIP, or extract a ZIP. - [CSV Viewer](https://toolkitmate.com/tools/csv-viewer): View, sort, filter and convert CSV files to JSON. - [SQLite Viewer](https://toolkitmate.com/tools/sqlite-viewer): Open .sqlite / .db files, browse tables and run SQL. - [Query CSV with SQL](https://toolkitmate.com/tools/sql-on-csv): Run SQL queries on CSV, JSON and Parquet files with DuckDB. - [Parquet Viewer](https://toolkitmate.com/tools/parquet-viewer): View Parquet files and export them as CSV or JSON. - [RAR / 7z Extractor](https://toolkitmate.com/tools/archive-extractor): Extract RAR, 7z, TAR, GZ and ZIP archives. ## CSS tools - [Box Shadow Generator](https://toolkitmate.com/tools/box-shadow-generator): Design CSS box-shadow visually. - [Border Radius Generator](https://toolkitmate.com/tools/border-radius-generator): Design CSS border-radius visually. - [CSS Gradient Generator](https://toolkitmate.com/tools/gradient-generator): Create linear and radial CSS gradients. - [Contrast Checker](https://toolkitmate.com/tools/contrast-checker): Check WCAG color contrast ratios. ## Optional - [About](https://toolkitmate.com/about) - [Privacy](https://toolkitmate.com/privacy): nothing is uploaded; analytics is cookieless - [Sitemap](https://toolkitmate.com/sitemap-index.xml)