MP3 Compressor
Reduce MP3 file size online, free, by lowering the audio bitrate.
Lowering bitrate reduces file size but also audio fidelity. 128kbps is a common balance point; go lower only if file size matters more than quality.
Drag and drop a file, or click to choose one
Accepted: MP3
MP3
How to Convert MP3 Compressor
- 1
Click "Choose file" and select the MP3 you want to compress.
- 2
Adjust the quality slider to control the bitrate/size tradeoff.
- 3
Click "Convert to MP3" to compress, then download the result.
File Format Facts
What is a MP3 file?
A widely supported lossy audio compression format that discards inaudible frequency detail to shrink file size while keeping most perceived quality.
- Developed by
- Fraunhofer Society
- Initial release
- 1993