About the MP3 to WAV
MP3 is the most compatible audio format in the world: every phone, car, speaker, app and editor plays it. WAV is uncompressed audio: perfect quality but around 10 MB per minute, which makes it awkward to email or upload.
FileStripe decodes your MP3 file with your browser's built-in decoder and encodes WAV on your device. Your files are never uploaded, so it is quick even for long recordings.
About MP3 and WAV files
New to these formats? These pages explain what each one is for and how to open it on Windows, Mac, iPhone and Android.
How to convert MP3 to WAV
- Add your MP3 files.
- Choose stereo or mono and the sample rate.
- Convert and download the WAV files.
Features
- No uploadConverted on your device.
- BatchConvert many files at once.
- Lossless WAV16-bit PCM.
- Volume boostMake quiet recordings louder.
Frequently asked questions
How do I convert MP3 to WAV?
Add your MP3 files above, choose the settings and click Convert. Each file is turned into WAV in a few seconds and you can download it right away.
Is there a file size limit?
No fixed limit. Very long files (several hours) need a device with enough memory.
Is the MP3 to WAV free?
Yes. The MP3 to WAV is completely free with no sign-up, no watermarks, no daily limits and no premium tier.
Are my files uploaded to a server?
No. FileStripe processes your files locally in your web browser using JavaScript. Nothing is uploaded, so the MP3 to WAV is safe for private photos and confidential documents and even works offline once the page has loaded.
Does it work on iPhone and Android?
Yes. The MP3 to WAV works in Safari, Chrome, Firefox, Edge and Samsung Internet on phones, tablets and computers. On a phone you can pick files from your photo library or files app and share the result straight to another app.
Last updated · Processing happens locally in your browser.