MP3 Compressor
Drop the bitrate to hit a target file size for email or upload limits.
Drop files, or click to browse
MP3, WAV, and other audio files welcome
Frequently asked questions
What bitrate should I pick?+
128 kbps is a good balance for speech and casual listening; 192–320 kbps preserves more detail for music.
Is my file uploaded to a server?+
No — compression runs locally via ffmpeg.wasm in your browser tab.
Need another format? Try the full Audio Compressor, or explore all audio tools.