M4A to WAV
Decodes the AAC in your M4A to uncompressed 16-bit PCM WAV. No quality lost in the move.
Drop an M4A file here
Everything happens on your device — your files are never uploaded.
file.m4a
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Converting…
Done
How it works
- 1 Drop your M4A file, or pick it from your device.
- 2 Click Convert to WAV and watch the progress bar as it decodes.
- 3 Download your WAV. It never leaves your browser.
Built with open source
- Mediabunny — Converts and edits video and audio in the browser via WebCodecs. Add-on encoders cover MP3, AAC, and FLAC. · MPL-2.0
Frequently asked
Does converting to WAV restore quality lost by the M4A? +
No. WAV is lossless uncompressed PCM, but it can only hold what's already in the source. Detail the lossy AAC encoding threw away is gone for good.
Is my M4A uploaded to a server? +
No. The audio is decoded and written to WAV right in your browser with WebCodecs. It never leaves your device.
Why is the WAV file so much larger? +
WAV stores uncompressed samples and M4A is compressed, so the output runs several times bigger. That uncompressed format is exactly what most DAWs and editors want.