Private media conversion
M4A to WAV Converter
Decode M4A audio into broadly editable 16-bit PCM WAV without uploading your recording.
The engine downloads once from a CDN. Your media remains on this device.
How to use the m4a to wav converter
- STEP 1Choose a M4A file up to 200 MB.
- STEP 2Convert it locally to WAV.
- STEP 3Download the finished WAV file.
About this tool
Uncompressed WAV is useful for DAWs, editors, transcription workflows, and older software that does not accept M4A.
WAV output is usually much larger because it stores uncompressed PCM samples; it cannot restore details already lost in the M4A source.
Processing time depends on duration, source bitrate, output format, and device performance.
Frequently asked questions
Which WAV encoding is created?
The output uses standard 16-bit PCM while retaining the source sample rate and channel layout when supported.
Is my M4A file uploaded?
No. FFmpeg WebAssembly performs the conversion in your browser. The engine downloads from a CDN, but your media stays on your device.
What is the maximum file size?
The browser converter accepts files up to 200 MB. Long files may require substantial device memory.