iPhone Voice Memos and many recorder apps save M4A, but some audio editors, phone systems, samplers and voice tools only accept WAV. Drop the M4A here for a standard 16-bit WAV that opens everywhere. The conversion runs on your device, so the recording is never uploaded.
Your file never leaves your device. Nothing is uploaded.
Drop an audio or video file here
Drop an .m4a up to 500MB. It's converted on your device.
Conversion runs on FFmpeg, compiled to WebAssembly, inside this browser tab. Licences and source
No. The WAV holds the M4A's sound exactly, without further loss, but it can't restore what the M4A compression removed. Expect a file about ten times bigger.
Nowhere. The converter runs inside your browser tab, so the file is read and converted on your own device and saved straight back to it. It is never uploaded to Wave or anyone else, and we never see its name or contents.
Open it in Voice Memos, tap the three dots, then Share and Save to Files. Open this page in Safari on the iPhone and pick it from Files, or AirDrop it to a computer first.
No. The free Wave AI transcription tool reads M4A directly, and the smaller file uploads faster. Use WAV only when another app asks for it.
Related: Free Audio Converter That Never Uploads Your File · Free audio transcription · Free YouTube Transcript Generator
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