MP3 WAV Converter
One tool, both directions. Convert MP3 to WAV to get an uncompressed file your DAW or audio editor can work with, or turn a WAV back into an MP3 when you need something small enough to share and stream. It runs in your browser — no software to install, no account, and no file limits.
Drop your MP3 or WAV file here
or click to browse files
.mp3, .wav, .wave supportedMP3 vs WAV: Comparison
| Feature | MP3 | WAV |
|---|---|---|
| File Size | Small (3–10 MB) | Large (30–100 MB) |
| Audio Quality | Compressed (very good) | Uncompressed (perfect) |
| Compatibility | Universal | Universal |
| Streaming | Excellent | Not ideal |
| Professional Use | Limited | Industry standard |
| Best For | Music players, mobile | Recording, editing, mastering |
The one thing to understand before you convert MP3 to WAV
MP3 is a lossy format. When an MP3 is first created, the encoder permanently deletes audio it judges you won’t miss in order to make the file small. WAV is the opposite — an uncompressed PCM format that stores every sample exactly, usually at 16-bit, 44.1 kHz, which works out to roughly 10 MB per minute of stereo sound.
Here’s the part most converters won’t tell you plainly: turning an MP3 into a WAV does not restore quality. The data the MP3 already discarded is gone, and expanding the file can’t reconstruct it. You end up with a WAV that is many times larger but sounds identical to the MP3 you started with — bigger, not better. Anyone promising “studio quality” from an upconverted MP3 is selling a myth.
So the real reason to do this is never a quality boost. It’s editing and compatibility: getting your audio into a format that professional tools accept, and keeping it lossless while you work on it.
When to convert MP3 to WAV — and when to go the other way
Convert to WAV when…
- ✓ Your DAW or audio editor won’t import the MP3 and needs uncompressed input
- ✓ You’re editing and want to avoid re-encoding loss between saves
- ✓ A CD-burning, broadcast, or hardware system requires WAV/PCM
- ✓ A game engine or app expects raw PCM audio
Convert to MP3 (or stay MP3) when…
- ✗ You just want to listen — the MP3 already sounds the same
- ✗ You need to email, upload, or stream the file and size matters
- ✗ You’re loading music onto a phone or car stereo
- ✗ You were hoping WAV would repair a low-quality MP3 (it can’t)
Free, and no account needed
There’s no signup, no watermark, and no limit on how many files you convert in either direction. Pick a file, choose an output, and download it — that’s the whole flow. One honest caveat worth repeating: a WAV made from an MP3 is only ever as good as that MP3, so use this for editing and compatibility rather than expecting cleaner sound. If you also work with FLAC, M4A, or other formats, we have dedicated converters for those too.
Last updated: July 2026
Frequently Asked Questions
Everything you need to know