# ConvertFree

> ConvertFree is a free, privacy-first online video and audio converter. All file processing happens directly in the user's browser using WebAssembly (FFmpeg compiled to WASM). Files are never uploaded to any server.

## Key Facts
- Browser-based conversion using WebAssembly — no server uploads
- 100% private: files never leave the user's device
- Supports 15+ video formats: MP4, MOV, AVI, MKV, WebM, WMV, FLV, MPEG, 3GP, TS, M4V
- Supports 9+ audio formats: MP3, WAV, AAC, FLAC, OGG, M4A, WMA, Opus, AIFF
- Video-to-audio extraction (e.g., MP4 to MP3)
- Free with no account required, no watermarks, no file size tricks
- Desktop: up to 500 MB files; Mobile: up to 200 MB files

## Main Tools
- Video Converter: https://getconvertfree.com/video-converter
- Audio Converter: https://getconvertfree.com/audio-converter
- Video Compressor: https://getconvertfree.com/tools/video-compressor
- Video Trimmer: https://getconvertfree.com/tools/video-trimmer
- Audio Compressor: https://getconvertfree.com/tools/audio-compressor

## Popular Conversions
- MOV to MP4: https://getconvertfree.com/mov-to-mp4
- MP4 to MP3: https://getconvertfree.com/mp4-to-mp3
- MKV to MP4: https://getconvertfree.com/mkv-to-mp4
- FLAC to MP3: https://getconvertfree.com/flac-to-mp3
- WAV to MP3: https://getconvertfree.com/wav-to-mp3
- M4A to MP3: https://getconvertfree.com/m4a-to-mp3
- AVI to MP4: https://getconvertfree.com/avi-to-mp4
- WebM to MP4: https://getconvertfree.com/webm-to-mp4
- WMV to MP4: https://getconvertfree.com/wmv-to-mp4
- MP4 to MOV: https://getconvertfree.com/mp4-to-mov

## Guides
- Blog: https://getconvertfree.com/blog
- How to Compress Video for Email: https://getconvertfree.com/blog/how-to-compress-video-for-email
- MP4 vs MOV Comparison: https://getconvertfree.com/blog/mp4-vs-mov
- Video Codecs Explained: https://getconvertfree.com/blog/video-codecs-explained
- Best Audio Formats Explained: https://getconvertfree.com/blog/best-audio-formats-explained

## Technology
ConvertFree uses FFmpeg compiled to WebAssembly to perform all conversions client-side. This means the browser does the work — no data is sent to external servers. This makes the tool safe for confidential files in regulated industries (legal, healthcare, finance, education).