MP3 to WAV
Convert MP3 to WAV online for free — create uncompressed 16-bit PCM WAV files for audio editors, DAWs, video editors, sampling and CD burning. Keep stereo or mix to mono, and trim, fade or normalise if you like. Runs privately in your browser.
100% private — your audio is converted on your device, never uploaded. Conversion happens on your device; nothing is uploaded.
Your browser decodes the audio and writes an uncompressed 16-bit WAV on your device — nothing is uploaded. Works with MP4, MOV, M4A, WebM, MKV, WAV, OGG and more; very long files need plenty of memory, so trim if your browser struggles.
How to convert MP3 to WAV
- Drop your MP3 in the box.
- Choose stereo or mono, and optionally trim or normalise.
- Click Convert to WAV.
- Listen and download the WAV file.
What you can use it for
- Import audio into editors and DAWs that prefer WAV
- Prepare tracks for CD burning
- Use samples and sound effects in music software
- Meet upload requirements that ask for WAV
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See all free image tools →Frequently asked questions
Does converting MP3 to WAV improve quality?
No — it can't restore detail the MP3 removed. It gives you an uncompressed file that editing software handles more easily and that won't lose more quality when re-saved.
Why is the WAV so much bigger?
WAV is uncompressed: about 10 MB per minute of stereo audio, versus about 1–2 MB for MP3.
What sample rate is used?
The original MP3's sample rate (usually 44.1 kHz) at 16-bit.
Can I convert just part of the file?
Yes — set a start and end time (minutes:seconds) before converting. Fade in and out smooths the cut edges.
Is there a file size limit?
There's no upload limit because nothing is uploaded, but the whole file is decoded in your browser's memory. Files up to a few hundred MB work well on most computers; for very long recordings, convert in parts.
Is my file uploaded?
No. Decoding and MP3 encoding both happen on your device.