What is M4A?
M4A is Apple's AAC audio format. It is what iPhone Voice Memos, GarageBand exports and many podcast downloads use.
All tools
M4A to WAV converter
Convert M4A to WAV for free, right in your browser. Drop a file, wait a few seconds and download. Useful when an audio editor, sampler or voice tool only accepts WAV.
M4A to WAV Converter
Convert M4A to WAV right in your browser. Files never leave your device, so there is no upload wait and no size queue.
Drop your M4A file or tap to choose
Up to 1 GB. Converted on your device.
Tool details
How to convert M4A to WAV
- 01
Drop your M4A file
Drag it onto the box or tap to pick it from your device.
- 02
Let it convert
Your browser decodes the audio and re-encodes it. A progress bar shows how far along it is.
- 03
Download the WAV
Preview it on the page, then download the new file with the same name as the original.
About this tool
Why convert to WAV?
WAV keeps every detail of the sound with no further compression, which is ideal for editing, mixing, noise cleanup and voice cloning samples.
Private by design
Most online converters upload your file to their servers. This one does the work locally, so recordings of meetings, interviews or unreleased music never leave your computer or phone.
Frequently asked questions
Why is the WAV so much bigger than the M4A?
WAV stores audio uncompressed. A minute of stereo WAV is about 10 MB, several times larger than the same M4A. The sound does not get better, but editors can work with it without re-compressing.
Can I use the WAV for voice cloning?
Yes. Most voice cloning tools prefer clean WAV samples. Record in a quiet room, convert here, and trim any silence before uploading your sample.
Is my M4A file uploaded anywhere?
No. The conversion runs inside your browser on your own device. Your file is never sent to FacelessGenie or any server, which also means there is no upload wait.
Is there a file size limit?
You can convert files up to 1 GB. Very long files take longer because your device does the work, but the page shows progress while it runs.
Which browsers work?
Recent versions of Chrome, Edge and Safari handle every format here. Firefox works for most audio files. If a file will not open, try Chrome or Edge, which support the widest range of WAV encoding.