M4A to WAV
Convert M4A to WAV online, free — right in your browser. Nothing is uploaded.
Nothing is uploaded — this runs on your own device. Which is why the speed is your computer’s: a faster processor and more memory finish sooner, and a large file on a modest machine can take a few minutes. Please leave this tab open while it works.
Everything ran in your browser — nothing was uploaded.
How to use the M4A to WAV
- Drop in your M4A file (or any audio file).
- The output is already set to WAV — pick a bitrate if you like.
- Click Convert and download your WAV file.
About the M4A to WAV
M4A to WAV converts M4A audio into WAV, right in your browser. M4A (AAC) is the efficient format Apple uses — very good quality at small sizes, the default for iTunes, Apple Music and iPhone voice memos. WAV is uncompressed and completely lossless: studio-perfect quality but large files, the standard for editing and mastering.
Converting M4A to WAV gives you an uncompressed copy that audio editors and DAWs accept without any fuss. Note that converting a compressed file to a lossless one does not restore lost quality — it simply stores the same audio uncompressed, which is what editing software expects. Everything runs on your device with a WebAssembly build of ffmpeg, so your file is never uploaded — it is private, free and has no watermark. The audio engine is downloaded once (shared with the other audio and video tools) and then cached, so repeat conversions start quickly.
Frequently asked questions
Is my M4A file uploaded?
No. The conversion runs entirely in your browser with ffmpeg (WebAssembly). Your file never leaves your device.
Will I lose quality converting M4A to WAV?
Note that converting a compressed file to a lossless one does not restore lost quality — it simply stores the same audio uncompressed, which is what editing software expects.
What bitrate should I choose?
For WAV, 192 kbps is a good balance and 320 kbps is near-transparent. Lossless targets (WAV, FLAC, AIFF) ignore bitrate and keep full quality.
Can I convert more than one file?
Convert them one after another — each stays private on your own device, with nothing uploaded.