Free Audio Compressor
Compress MP3, WAV, M4A and OGG audio files online for free — reduce size up to 60% while keeping sound quality. Runs entirely in your browser.
- MP3, WAV, M4A & OGG support — optimized MP3 output via the LAME encoder
- Private by design — encoding happens in a Web Worker on your device
- Batch processing — compress multiple files at once
How to compress an audio file
- Select or drop your MP3, WAV, M4A or OGG file (up to 500 MB)
- Pick a quality setting to balance size and fidelity
- Download the compressed audio file instantly