Convert M4A to FLAC.
Turn an M4A into a FLAC file for players, editors and libraries that expect FLAC, with tags and cover art carried over.
When FLAC is the requirement
Some music servers, DJ tools and archival workflows accept only FLAC. Converting an Apple Lossless M4A gives you a true lossless copy in the format they want.
Tags travel with it
The title, artist and embedded cover art from the M4A are written into the FLAC, so your library stays organised.
Size change
From a lossy AAC M4A, the FLAC is several times larger, because it stores every decoded sample. From an Apple Lossless M4A, it is about the same size.
How it works
- 01
Upload your M4A
Drop a file or pick one from your device. Private by default.
- 02
Convert with ffmpeg
ffmpeg decodes the M4A and stores the result losslessly as FLAC, keeping tags and cover art.
- 03
Download
Grab your FLAC.
Lossless FLAC of exactly what the M4A decodes to
Title, artist and cover art kept
Private uploads, auto-deleted after 1 hour
No watermark, no signup to try
Open-source ffmpeg engine
M4A to FLAC: no added loss
FLAC is a lossless format, so encoding into it adds no further quality loss. Note that if M4A was already lossy (like MP3 or AAC), detail discarded earlier can't be brought back. The FLAC is faithful to the M4A, just larger.
Need more than a conversion?
Send your audio or video to TranscriptAI to generate a transcript, summary, structured notes, flashcards, quiz questions or action items: automatically.
Common questions
Is it free?+
Yes. Convert M4A to FLAC free. No signup and no watermark. Free covers 10 server conversions a day, up to 100 MB a file. Pro removes the daily limit and raises the file limit to 2 GB.
Is my file private?+
Your file is uploaded to a private bucket, converted on our own engine, and auto-deleted after 1 hour. It is never sent to a third-party converter.
Will it sound better than the M4A?+
No. Most M4A files are AAC, which is lossy. FLAC stores the decoded audio without further loss, but it cannot restore what the AAC encoder removed. Convert when a player or workflow requires FLAC.
What about Apple Lossless M4A?+
An Apple Lossless (ALAC) M4A converts to FLAC with no loss at all, because both formats are lossless.
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