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WAV to MP3 converter

Shrink WAV recordings and exports to MP3, usually to about a tenth of the size, ready to email or upload.

Runs in your browser. Your file is never uploaded.

How to convert WAV to MP3

  1. 1Drop one or more WAV files into the box above.
  2. 2MP3 is already selected. Pick 320 kbps for music masters, Standard for most things, or 64 kbps for speech.
  3. 3Select Convert and download the MP3s.

What you get

  • One MP3 per WAV, with the same name.
  • A minute of CD-quality WAV is about 10 MB. As a Standard MP3 it's about 1.4 MB.
  • Up to 3 files at a time free, or 30 with Pro.

Limits

  • Free, with or without an account: files up to 500 MB, 3 at a time.
  • With Pro: files up to 2 GB, 30 at a time.
  • Big files are read from your disk as they're processed, so they don't need to fit in memory, but a phone takes longer than a computer.

What happens to your file

Your file never leaves your device. The conversion runs in your browser using code from our site, and we don't receive the file, its name or anything inside it. How we handle files.

WAV to MP3: common questions

Is this WAV to MP3 converter free?
Yes. Files up to 500 MB convert free, without an account and without a watermark. Pro raises the limit to 2 GB a file and converts up to 30 files at a time.
What bitrate should I use?
320 kbps if the MP3 is the final copy of your music, Standard (about 190 kbps) for everyday listening, and 64 kbps for podcasts and voice recordings.
Can I convert MP3 back to WAV?
Yes, on the MP3 to WAV page. The WAV will be bigger, but it can't restore what MP3 compression removed.
Is my audio uploaded?
No. The conversion runs in your browser, so the audio stays on your device and never reaches our server. Once the page has loaded it keeps working if your connection drops.
Why does the first conversion take a few seconds to start?
The converter is a copy of FFmpeg that runs in your browser. It's about 31 MB, so it downloads the first time you use it and your browser keeps it for next time.

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