In-browser tool
Convert M4A to WAV
Free, private and in your browser: Apple's AAC audio, common on iPhone in, uncompressed, lossless studio-quality audio out. The file is never uploaded.
Drop an audio fileMP3, WAV, M4A, OGG, FLAC — converted in your browser
MP3 · WAV · M4A · OGG · FLACHow it works
01
Choose or drop a M4A file
02
The browser converts it to WAV locally
03
Download the result — nothing was uploaded
Frequently asked questions
Will re-encoding lose quality?
Converting to WAV re-encodes the audio. WAV is lossless; MP3 is a small lossy file. We can't add back quality the source never had.
Does my file get uploaded?
No. Your audio is decoded and re-encoded entirely in your browser — it never leaves your device.
Is my file uploaded to a server?
No. This tool runs entirely in your browser. You can open your browser's network tab and verify no request carries your file.