Convert WAV to MP3
Compress bulky WAV recordings into MP3 files roughly a tenth of the size, right in your browser. No upload means even hour-long session recordings convert without waiting on a network.
100% local - your file is never uploaded
Drop your WAV file here, or click to select
Supports audio/*,.wav
How to convert WAV to MP3
- 1
Drop your WAV file into the box above, or click it to browse
- 2
Click "Convert WAV to MP3" - processing runs locally in your browser
- 3
Watch the progress bar - nothing is uploaded, so there is no waiting on a network
- 4
Download your MP3 file when the conversion finishes
Why convert WAV to MP3?
WAV stores raw uncompressed PCM audio - roughly 10 MB per minute in CD quality. That is ideal while recording or editing but wasteful for sharing and playback. MP3 at 192-320 kbps sounds transparent to most listeners while cutting file size by around 85-90%, making it practical to email, upload, or store large libraries.
WAV
WAV is Microsoft's container for uncompressed PCM audio - the standard capture format of audio interfaces, DAWs, field recorders, and sound design libraries.
MP3
MP3 is compressed, universally supported audio. At higher bitrates the difference from the WAV source is inaudible in normal listening, at a fraction of the size.
Frequently asked questions
How much smaller will my file get?
A CD-quality WAV runs about 10 MB per minute; MP3 at 192 kbps runs about 1.4 MB per minute - roughly 86% smaller. An hour-long recording drops from ~600 MB to ~85 MB.
Should I keep the WAV original?
If it is a master recording you might edit again, yes - keep the WAV as your archive and use MP3 for distribution. MP3 is lossy, so you cannot get the discarded data back.
Is a large WAV file a problem for a browser tool?
No upload is involved, so there is no transfer time and no server limit. Files of several hundred megabytes convert fine on a typical modern computer.
Need more options like other formats or quality settings? Use the full Audio Converter tool.