Convert MP3 to WAV, free.
Drop an MP3 and get back an uncompressed WAV — the clean, editable format that audio editors and DAWs prefer. It converts on your device, so the file never leaves it.
How to convert MP3 to WAV
- Drop your MP3 in. Choose or drag an .mp3 file — it loads in your browser and is never uploaded.
- Convert. Click Convert; the MP3 is decoded and written to an uncompressed 16-bit WAV on your device.
- Download. The WAV saves straight to your device, ready to drop into an editor.
Why convert MP3 to WAV
MP3 is a compressed, lossy format — brilliant for storage and sharing, but not what most editing tools want to work with. Audio editors, DAWs, samplers and some broadcast or hardware systems expect uncompressed PCM, and WAV is the format they trust. Loading a WAV means the software has every sample to work with, and saving repeatedly never re-compresses your audio the way re-exporting an MP3 would.
Converting an MP3 to WAV does not make it sound better — the detail an MP3 dropped is gone for good. What it does is give you a stable, editable working copy that will not lose any more quality as you cut, layer and export. Think of the WAV as the version you edit and the MP3 as the version you shared.
Before converting for editing
If you are converting so you can edit, remember that the WAV inherits whatever quality the MP3 already had — it is a clean container, not a repair tool. Start from the highest-bitrate MP3 you have. For long recordings, expect the WAV to be several times larger, since uncompressed audio runs to roughly ten megabytes per stereo minute.
If your browser cannot decode a particular MP3, it is usually a corrupt or unusually-encoded file rather than a normal one. Re-export it from the original source if you can. TrackMix only works with files your browser can read locally, which keeps the conversion private and avoids any server upload.
Frequently asked questions (5)
Is the MP3 to WAV converter free?
Yes — completely free, with no sign-up, no watermarks, and nothing uploaded.
Do my files get uploaded?
No. Conversion runs entirely in your browser, so your audio never leaves your device.
Why convert MP3 to WAV?
WAV is uncompressed, so audio editors, DAWs, samplers and some hardware prefer it as a clean working format. Converting an MP3 to WAV gives you an editable file that will not be re-compressed every time you save.
Does converting MP3 to WAV improve the quality?
No. MP3 is lossy, and converting to WAV cannot restore detail that was already discarded — it only stops any further loss. The WAV sounds the same as the MP3, just larger.
Why is the WAV so much bigger than the MP3?
WAV stores every sample uncompressed while MP3 is squeezed to roughly a tenth of the size, so a few minutes of audio can jump from a couple of megabytes to tens of megabytes once converted.