Compress MP3

Lower the bitrate of an MP3 (or any audio file) to shrink its size. Runs entirely in your browser using FFmpeg compiled to WebAssembly.

Settings

Drop an audio file

Or click to choose. MP3, WAV, M4A, OGG, FLAC all accepted.

No file selected.

Target bitrate

Channels

FFmpeg loads on first run only (~30 MB).