Free tool

M4A to WAV converter iPhone recordings, ready for any editor.

Drop M4A files or voice memos and download WAV versions that Audacity, Premiere, DAWs and transcription tools open without a plugin.

Drop audio files here or click to choose. MP3, WAV, M4A, AAC, OGG, FLAC, AIFF, or the sound of a video. Several at once is fine.

Convert to Bitrate MP3, M4A and OGG Channels

M4A to WAV converter at a glance

content.win converts audio a whole folder at a time, with no daily cap and no file-size wall.

Works with: MP3, WAV, M4A and AAC, OGG and Opus, FLAC, AIFF, and the sound of an MP4, MOV or WebM. Several at once.
Comes back as: MP3, WAV, M4A, OGG or FLAC, the full length, named after the original.
Runs: In your browser.
Limits: No daily limit and no cap on how many files.
Price: Free. No account, no watermark.

Drop the M4A files in. Voice memos, music or recordings, one or a folder.
Pick mono or stereo. As recorded keeps what the file has; mono halves the size of a voice memo.
Download the WAVs. The full length of each, named after the originals.

Editing: Audio editors and video editors decode WAV instantly and save it without any extra loss. Each edit of an M4A, by contrast, re-compresses it.
Transcription and tools: Some transcribers, samplers and older tools take only WAV or MP3. WAV is the exact one.
Size: WAV is about ten times the M4A. It is the price of uncompressed audio.

Can I convert an iPhone voice memo?

Yes. Share the memo to Files or your computer, drop the .m4a here, download the WAV.

Is M4A to WAV lossless?

The WAV holds exactly what the M4A decodes to. Nothing more is lost from here on.

Why is the WAV so big?

Uncompressed audio takes about 10 MB a minute in stereo. Choose mono for a voice recording to halve it.

Can I convert several at once?

Yes. Drop the folder and one button downloads every WAV.