Private browser processing

Compress an MP3 below your size limit.

The bitrate is lowered within the validated quality range first; tags, sample rate and channels stay intact unless you choose otherwise. The file never leaves your device.

Target Size

Quick Select

Select an MP3 to see its target range.

Output kept below the target

Tags, sample rate and channels preserved

Private, local browser processing

Compress multiple MP3 files

Target size per file (MB)