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Reduce an MP3's File Size
Reduce an MP3's File Size
About this option
A 320 kbps MP3 is more than twice the size of a 128 kbps one, and most listeners can't tell the difference on everyday headphones. This page opens the audio compressor at 128 kbps, a sensible default for music.
When to use it
- An MP3 is too large to email or upload
- Freeing space on a phone or player
- Making lighter copies of a music or podcast library
How to use it
- 1Drop one or more audio files — 128 kbps is already set
- 2Lower the bitrate for a smaller file, or raise it for better quality
- 3Click Compress and download the results
Frequently asked questions
How much smaller will it get?
File size scales with bitrate, so going from 320 to 128 kbps reduces it by about 60%.
Does the output have to be MP3?
Yes, the compressor exports MP3 files.
Is compression reversible?
No. Keep your original if you might need the higher quality later.