How to use it
- Drop your MP3 files onto the page.
- Tick Mono if you need a single-channel WAV.
- Click Convert to WAV and save the file or ZIP.
Why convert MP3 to WAV?
Some programs and devices only accept WAV: older audio editors, samplers and drum machines, CD-burning software, phone systems (hold music), certain game engines and voice-over upload forms. WAV is uncompressed PCM audio, so it's also easy to edit without further quality loss each time you save.
The output is 16-bit, 44.1 kHz WAV, the CD standard, which almost everything reads. Converting won't improve the sound: the WAV contains exactly what the MP3 had, just uncompressed. Expect about 10 MB per minute of stereo audio, roughly 7–10 times the MP3's size.
Batch conversion and privacy
Add several MP3s at once; each WAV keeps the original name, and multiple files come back in a single ZIP. Tick Mono to mix stereo down to one channel, which halves the file size.
The conversion runs in your browser, so your files are not uploaded anywhere. To shrink WAV files again, use WAV to MP3.
Frequently asked questions
Does converting MP3 to WAV improve quality?
No. The WAV holds the same sound as the MP3, uncompressed. It's useful for compatibility and editing, not for better quality.
What WAV format do I get?
16-bit PCM, 44.1 kHz, stereo (or mono if you tick it): the CD-audio standard.
Why is the WAV file so big?
WAV is uncompressed: about 10 MB per minute of stereo audio, compared with about 1–2.4 MB for MP3.
Last updated: November 12, 2026