Compress Audio
Lower the bitrate of audio files to save space.
Drop your files here
or browse your device · paste with Ctrl+V
Nothing is uploaded. Your files are decoded, converted and re-encoded by WebAssembly running inside this tab, then handed straight back to you. The first conversion of a kind downloads that engine (a few MB for images, ~12–30 MB for video/audio) — later ones are instant.
Your files never leave this device — there is no upload and no server to delete them from.
About this tool
Converts to MP3 at your chosen bitrate. Below about 128 kbps you start to hear it on music; speech survives much lower, and 64 kbps mono is plenty for a voice recording.