How to convert MP3 to WAV
- Drop your MP3 file on the box above or click the box to choose it.
- WAV is already selected. Pick a quality, and trim the start or end if you need to.
- Click Convert and watch the progress bar. Files that can be copied without re-encoding are ready in seconds.
- Click Download to save the WAV file.
Why convert MP3 to WAV?
MP3 is the most compatible audio format: every phone, car stereo, speaker and app plays it. Its lossy compression makes files about a tenth of the size of a WAV.
WAV is uncompressed audio and the standard in recording and editing software. Nothing is lost, but a minute of stereo sound takes about 10 MB.
Choose WAV when you are going to edit the sound or a program needs audio without any compression.
MP3 and WAV at a glance
| Format | MP3 | WAV |
|---|---|---|
| Type | Audio | Audio |
| Compression | Lossy | Uncompressed |
| Typical codecs | MP3 | PCM |
| Best for | sound that plays everywhere | uncompressed sound for editing |
| Opens in | Every device and app | Every device and app |
Good to know
- Converting a compressed MP3 to WAV doesn't restore sound that the compression removed; it gives you a file that every editing program accepts without further loss.
Questions about converting MP3 to WAV
Is the MP3 to WAV converter free?
Yes. It is free, with no sign-up, no watermark and no limit on how many files you convert.
Is my file uploaded?
No. Your browser reads and converts the file on your own device; nothing is sent to 4Dev or anyone else.
Is there a size limit?
Files can be up to 500 MB. The result is built in your device's memory, so very large files are better converted on a computer than on a phone.
Will I lose quality?
No new loss is added, because WAV is lossless. Detail that the MP3 compression already removed does not come back, though.
Which browsers can do this?
Current Chrome, Edge, Safari and Firefox on a computer, and Chrome or Safari on a phone. The format list only offers what your browser can actually create.
Is this tool free?
Yes, it's free to use. No signup, no email required. Get results on this page.
How do I get my result?
Use the tool on this page. Your result appears here; no email delivery is required.