Convert
Convert WAV to MP3
Free, in your browser, with no watermark and no signup. This produces an audio file, discarding any video track.
Why you have a WAV file
WAV is uncompressed, which is exactly what you want while recording and editing, and completely impractical afterwards. A few minutes of WAV runs to tens of megabytes, which is painful to upload, email, or host.
What the conversion actually does
The uncompressed audio is compressed to MP3, typically cutting the file to around a tenth of its original size by discarding information the ear is least likely to notice.
Worth knowing first
This is lossy and it is one-way; converting back to WAV later restores the file size but not the discarded detail. Keep the WAV as your master and treat the MP3 as the delivery copy.
How to convert WAV to MP3
- 01
Add your WAV file
Drop it in, or pick it from your device. Free uploads go up to 1 GB per file.
- 02
Choose MP3
Pick the output format from the list. Queue several files of the same type to batch them.
- 03
Download
Watch progress live, then download the result. No watermark, on any plan.
Other conversions
Frequently asked
How do I convert WAV to MP3 for free?
Open the GrumpTools File Converter, add your WAV file, choose MP3 as the output and download the result. It runs in the browser, output is never watermarked, and free uploads go up to 1 GB per file.
Does converting WAV to MP3 reduce quality?
This is lossy and it is one-way; converting back to WAV later restores the file size but not the discarded detail. Keep the WAV as your master and treat the MP3 as the delivery copy.
Can I convert several WAV files at once?
Yes. Queue multiple files of the same type and convert them in one batch, then download them individually or all at once.