Skip to content
ClipTools
M4AWAV

Convert M4A to WAV

This free M4A to WAV converter changes your MPEG-4 Audio (.m4a) file into a Waveform Audio (.wav) file, right in your browser. There is nothing to install, no account to create, and no limit on how many files you convert.

100% private. Your file is processed locally in your browser with WebAssembly — it is never uploaded to a server, stored, or seen by anyone.

Share this tool

The conversion runs on your own device using ffmpeg compiled to WebAssembly (ffmpeg.wasm), so your file is never uploaded to a server. WAV is best for uncompressed editing and mastering, which is the usual reason to convert from M4A.

Why convert M4A to WAV?

  • WAV plays on more devices and apps than M4A, so it is the safer choice for sharing.
  • WAV is lossless and larger, but converting from M4A cannot restore quality that M4A already discarded.
  • Pick WAV when you need a file made for uncompressed editing and mastering.

M4A vs WAV

PropertyM4AWAV
Full nameMPEG-4 AudioWaveform Audio
ContainerMPEG-4WAV
Typical codecAACPCM
CompatibilityWideUniversal
LosslessNoYes
Best forApple Music and efficient playbackUncompressed editing and mastering

How to convert M4A to WAV

  1. Add your M4A file

    Drag and drop your .m4a file onto the upload area, or click to browse and pick it from your device.

  2. Start the conversion

    Click "Convert to WAV". Everything runs locally with ffmpeg compiled to WebAssembly (ffmpeg.wasm) - your file stays on your device.

  3. Wait a few seconds

    A progress bar shows the conversion. The first run is slightly slower while the engine loads, then it is cached.

  4. Download your WAV file

    When it finishes, download the .wav file straight to your device.

Frequently asked questions

Is this M4A to WAV converter free?
Yes. It is completely free with no signup, no watermark, and no limit on how many files you convert. It is supported by ads, which keeps the conversion itself free.
Are my files uploaded to a server?
No. The conversion runs locally in your browser using ffmpeg compiled to WebAssembly (ffmpeg.wasm), so your file is processed in memory on your own device and is never uploaded, stored, or seen by anyone.
Will I lose quality converting M4A to WAV?
WAV is lossless, but the source is decoded and re-encoded, so the result can only match - not exceed - the quality already in your M4A file.
Will the file get smaller or larger?
Larger. WAV is lossless, so the file grows compared with M4A - though it cannot recover quality M4A already lost.
What is the difference between M4A and WAV?
M4A is MPEG-4 Audio (an MPEG-4 container, typically AAC); WAV is Waveform Audio (a WAV container, typically PCM). WAV is best for uncompressed editing and mastering, while M4A is best for Apple Music and efficient playback.
How long does the conversion take?
Most files finish in a few seconds to under a minute, depending on length and your device. The first conversion is a little slower while the engine downloads and caches, then later runs start instantly.

Related conversions

MP3 → WAVFLAC → WAVM4A → MP3M4A → AAC

Need more formats or options? Use the full Audio Converter.