Compress MP3 files
Upload an MP3 file and shrink its size.
Quality
Your file never leaves your device. All processing happens right in your browser, and nothing is uploaded to a server.
Upload an MP3 file and shrink its size.
Your file never leaves your device. All processing happens right in your browser, and nothing is uploaded to a server.
The tool re-encodes your MP3 at a lower bitrate, trading some audio quality for a smaller file. You choose how far to push it: voice recordings stay perfectly intelligible at low bitrates, while music wants more breathing room.
Re-encoding an already-lossy MP3 always costs some quality, and shrinking is the only reason to do it. Good fits: getting attachments under email caps, audio for slow connections, voice archives where size beats fidelity. Poor fit: music you care about, which is better re-encoded from a lossless source.