Convert · free & private
Convert any file to any format
Video, audio, images, documents, fonts, CAD and more — 380+ conversion pairs, all processed privately on your own device.
All converters
Convert any video to MP4, WEBM, MOV, AVI, MKV or GIF, or pull the audio out as MP3, WAV or AAC. Powered by WebAssembly FFmpeg running entirely on your device: no uploads, no queues, no file-size tricks.
Convert music, voice memos and recordings between every common audio format, with bitrate control. Everything runs locally in your browser via WebAssembly.
Convert photos and graphics between all major image formats, including iPhone HEIC and vector SVG, with quality and resize controls. Processing happens entirely in your browser.
Create animated GIFs from video clips or image sequences, and convert GIFs to modern video formats. All processing is local. Your media never leaves your device.
Extract content from Word documents, convert between Markdown and HTML, and move between plain text and rich text. Entirely on your device.
Move data between Excel, LibreOffice and plain CSV without uploading anything. Conversion runs in your browser via WebAssembly.
Move tabular data between spreadsheets, JSON files, SQLite databases and SQL dumps without uploading anything. Conversion runs locally in your browser.
EPUB is a ZIP of web pages, which makes it perfect for in-browser conversion. Extract the text of an ebook, or package your writing into a valid EPUB.
Repackage desktop fonts for the web (WOFF/WOFF2) or convert web fonts back to TTF/OTF. Everything runs locally in your browser.
Move 3D meshes between formats for printing and the web, turn DXF drawings into viewable images, and convert STEP/IGES CAD files to meshes. All on your device.
Re-pack any archive into ZIP, TAR or TAR.GZ, browse its contents like 7-Zip, or extract its files. With nothing uploaded and nothing to install.
Instant converters for everyday and engineering units, computed locally in your browser. Pick a converter below to get started.
How it works
- 01Drop your file
Drag a file onto any converter — or the homepage, and we'll pick the right tool for you.
- 02Pick a format
Choose the output format and adjust quality, bitrate, size or pages to your needs.
- 03Download instantly
Conversion runs on your device via WebAssembly. The result downloads straight from your browser.
Why file converter on AZ Tooling?
AZ Tooling converts files the way the web was supposed to: entirely in your browser. WebAssembly builds of FFmpeg, ImageMagick-class codecs and document engines run on your device, so your files are never uploaded, queued, or stored on anyone else's server.
Pick a converter below — or just drop a file on the homepage and we'll route it to the right tool automatically. Every conversion is free, unlimited and watermark-free.
Frequently asked questions
Is the file converter really free?
Yes — every conversion is completely free, with no watermarks, sign-ups or daily limits. Because processing runs on your own device, we don't pay for server time, so we don't charge you for it.
Are my files uploaded anywhere?
No. All conversion happens locally in your browser via WebAssembly. Your files never leave your device — you can even disconnect from the internet after the page loads and keep converting.
What formats can I convert between?
Over 380 conversion pairs across video (MP4, MOV, WEBM, AVI, MKV…), audio (MP3, WAV, FLAC, AAC…), images (PNG, JPG, WEBP, AVIF, HEIC…), documents, spreadsheets, ebooks, fonts, CAD files and archives.
Is there a file size limit?
There's no artificial limit — the only ceiling is your device's memory. Most phones and laptops comfortably handle files of several hundred megabytes.
Explore more
Shrink videos, images, audio and PDFs by up to 90% with smart quality controls — privately, right in your browser.
Remove backgrounds, enhance photos, cut video and audio, and let on-device AI do the heavy lifting — no uploads, ever.
Merge, split, sign, protect, convert and organize PDFs — a complete PDF suite that never sees your documents.
A multi-track video editor, PDF editing & signing and document scanning — complete applications that run entirely on your device.