Convert MP3 to WAV
Ethical Tube's free MP3 to WAV converter turns MP3 audio files into WAV, uncompressed audio for recording and editing. It runs entirely in your browser, so your audio files are never uploaded, and it's free with no sign-up or watermark.
Files are converted on your device and never uploaded.
- Price
- Free
- Uploads
- None, it runs on your device
- Sign-up
- Not needed
- Batch
- Unlimited files
- Output
- WAV, lossless
- Install
- Nothing to install
How it works
How to convert MP3 to WAV
Add your MP3 files
Drop MP3 files onto the converter, click to choose them, or paste from the clipboard. Add as many as you like.
Check the settings
WAV is already selected. There's nothing to adjust, because WAV keeps the full quality of the source.
Download your WAV audio files
Each file gets its own download button as soon as it's ready. Download all saves everything in one ZIP file.
The formats
MP3 and WAV at a glance
What is an MP3 file?
MP3 is the most widely supported audio format. Its lossy compression makes files about a tenth the size of CD audio, and at 192 kbps or more most people can't hear the difference. Every device that plays music plays MP3. It opens in everything: phones, computers, car stereos, smart speakers, browsers, and every music player and audio editor.
What is a WAV file?
WAV is an uncompressed audio format from Microsoft and IBM. It keeps the full quality of a recording, which is why studios, podcasters, and editing apps use it, but one minute of CD-quality stereo takes about 10 MB. It opens in every computer and phone, every audio editor (Audacity, GarageBand, Logic Pro, Pro Tools), and all browsers.
Good to know
What changes when you convert MP3 to WAV
- WAV is lossless, so no more quality is lost, but it can't restore what MP3 compression removed, and the file gets bigger.
- The audio is saved as uncompressed 16-bit WAV.
- Copy-protected (DRM) files can't be converted.
- Very long videos can run out of memory, especially on phones.
FAQ
Questions, answered
Is this MP3 to WAV converter free?
Yes. It's completely free, with no sign-up, no watermark, and no limit on how many files you convert. It costs Ethical Tube nothing to run, because the conversion happens on your own device rather than on a server.
Are my files uploaded anywhere?
No. The conversion runs inside your browser with Mediabunny and your browser's WebCodecs video encoders, so your files never leave your device. Once the page has loaded, it even works offline.
Does converting MP3 to WAV lose quality?
No. WAV is lossless, so nothing is lost in the conversion. It can't add back quality that the MP3 compression removed, though.
Can I convert several MP3 files at once?
Yes. Add as many as you like. They're converted one after another, and you can download each WAV file as soon as it's ready or all of them in one ZIP file.
Does it work on iPhone, Android, Mac, and Windows?
Yes. It works in current versions of Chrome, Edge, Safari, and Firefox. Phones handle short clips well, and long or 4K videos convert best on a computer.
What can open a WAV file?
Every computer and phone, every audio editor (Audacity, GarageBand, Logic Pro, Pro Tools), and all browsers.
Is there a file size limit?
There's no upload limit because nothing is uploaded. The practical limit is your device's memory: everyday files are fine, and a computer can usually handle recordings several hours long.
Keep converting
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