Convert between audio formats
Re-encode MP3, WAV, FLAC, AAC, OGG, and M4A in your browser. Pick output bitrate or quality preset — we handle the encoding via FFmpeg WASM, no upload to our servers.
Input
Any common audio
MP3 · WAV · FLAC · AAC · OGG · M4A
Output
Re-encoded audio
Pick your bitrate / preset
- Runs 100% in your browser — nothing uploads
Pick a target format below — sensible bitrate/quality defaults are baked in.
Choose audio file
or drop your file here
MP3, FLAC, WAV, OGG, M4A, MP4 · max 100 MB
Convert to:
Processing happens server-side via ffmpeg. Uploads are deleted immediately after conversion.
See it in action
WAV → MP3 in your browser
What you put in → what you get back
Source file
What you provide
🎵 master.wav Format : WAV (PCM) Channels : 2 (stereo) Sample : 44.1 kHz / 16-bit Duration : 3:42 Size : 39.2 MB
Encoded master.mp3
What you receive
🎵 master.mp3 Format : MP3 (LAME) Bitrate : 320 kbps CBR Channels : 2 (stereo) Duration : 3:42 Size : 8.5 MB Encoded locally — no upload
Step-by-step guide
How to use this tool
- 01
Drop your audio
Any common format. Larger files take longer because conversion runs locally.
- 02
Pick output format
MP3, FLAC, WAV, AAC, OGG, or M4A. Choose bitrate or quality preset where applicable.
- 03
Download converted file
Output streams directly to disk via the browser's download API.
Key features
Why use this tool
Client-side encoding
FFmpeg compiled to WebAssembly runs entirely in your browser — files never leave your device.
Quality presets
Pick bitrate (320 kbps, 192 kbps, V0) or quality slider — no need to memorize FFmpeg flags.
Common use cases
Who this tool is for
Streaming prep
Re-encode masters to MP3 or AAC before uploading to distributors.
Compatibility fixes
Convert OGG/M4A to MP3 for legacy car stereos and old hardware players.
Questions answered