MP3 to WAV Converter
Convert MP3 audio to WAV for editing, sampling, and software that needs PCM input. Lossless PCM output, runs entirely in your browser. Free, no account, no upload.
What this tool does
Editors, DAWs, samplers, and a surprising number of tools want plain PCM audio, and MP3 is not it. Drop up to 10 MP3 files here and get back WAV files those tools load without complaint. The conversion runs in your browser, so the audio never leaves your device. Free, no account, no watermark.
Each file can be up to 500 MB.
How it works
- Add your MP3 files.
- Convert. WAV is uncompressed PCM, so there is no quality setting to pick.
- Download each WAV or grab them all as a ZIP.
Supported formats
| Supported formats | MP3 |
|---|---|
| MIME | audio/mpeg, audio/mp3 |
| Max file size | 524 MB |
When to use it
Audio editors and DAWs
Audacity, GarageBand, Pro Tools, and samplers all eat WAV natively. Feed them PCM and skip the decode step at import.
Sampling and remixing
Waveform editing, time-stretch, and effects behave predictably on PCM instead of on already-compressed frames.
Tools that only accept WAV
Some transcription, telephony, and analysis software refuses MP3 outright. Convert once and move on.
Uncompressed, honestly explained.
The conversion runs entirely on your device. Nothing is uploaded, nothing is stored, and the original MP3 files stay exactly where they are.
The WAV output writes the decoded samples as plain PCM. That is the format editors and analysis tools want, and it can be 10 or more times larger than the MP3 you started with.
One honest note: converting MP3 to WAV does not restore quality the MP3 format already discarded. The WAV is a lossless container for a lossy source. If you need a real upgrade, go back to the original recording.
Need the opposite direction? The WAV to MP3 converter shrinks recordings to shareable sizes.
Frequently asked questions
Is this MP3 to WAV converter free?
Yes. Free, no account, no watermark, no daily cap.
Are my files uploaded to a server?
No. The conversion happens inside your browser using your device's own audio decoder. Your files never leave your computer.
Does converting MP3 to WAV improve the quality?
No, and be suspicious of any converter claiming it does. The WAV is a perfect copy of what the MP3 contains, no more. What you gain is compatibility with tools that require PCM.
Why is my WAV so much bigger than the MP3?
MP3 compresses by throwing away sounds you barely hear; WAV stores every sample raw. Bigger is the expected outcome, not a bug.
How many files can I convert at once?
Up to 10 MP3 files per batch, each up to 500 MB. Run the tool again for more.
Related tools
Privacy
Your file never leaves your device.
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