Free tool
Runs entirely in your browser. Drop a clip, pick a bitrate, and get a smaller MP3 you can email, upload or store without the bloat. Nothing is uploaded.
Try it
The fastest way to make an audio file smaller without installing anything.
Target quality
Lower bitrate = smaller file. 128 kbps is a great all-round default.
MP3, WAV, OGG, M4A, FLAC — up to 100 MB. Re-encodes to a smaller MP3 at 128 kbps.
Runs in your browser via WebAssembly. The first compression loads the audio engine (~once per visit).
How it works
The compressor decodes your file and re-encodes it to a lower-bitrate MP3 right in your browser — all on your machine, no server round trip.
Step 1
64, 96, 128 or 192 kbps — lower means smaller.
Step 2
MP3, WAV, OGG, M4A or FLAC — up to 100 MB.
Step 3
See the size saving, preview, then save.
More free tools
Keep going — every one of these runs free in your browser, no signup.
Open the AudioPod dashboard for stem separation, voice cloning, transcription, multilingual narration, and batch processing — all on one free account.