M4A to FLAC Converter
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Convert M4A to FLAC online
Use this M4A to FLAC converter to turn M4A files into FLAC right in your browser — ideal for lossless music, audiophile libraries and archiving audio. M4A uses lossy compression and FLAC uses lossless compression, so file size and quality can change.
When should you convert M4A to FLAC?
- When you need it for lossless music
- When you need it for audiophile libraries
- To open your files in apps that prefer FLAC
- To share FLAC files more easily
What happens to your file
The M4A audio is decoded and re-encoded to FLAC with FLAC at lossless compression. There is no video stream involved, so the job is quick even for long recordings.
Settings this conversion runs with
| Engine | ffmpeg |
|---|---|
| Output codec | FLAC |
| Setting | lossless compression |
| Compression | Lossless |
What changes
- FLAC is lossless, but it can only preserve what is already in the M4A file. Detail removed when the M4A was first encoded does not come back — you get a bigger file of the same audio, not a better one.
- Cover art, lyrics, and most tags are not carried across — the output keeps the audio, not the metadata around it.
About M4A and FLAC files
M4A audio
Strengths
- good quality at small size
- default on Apple devices
Limitations
- lossy
- needs converting for some players
FLAC audio
Strengths
- lossless quality
- smaller than WAV
- great for archiving
Limitations
- larger than MP3
- not supported everywhere
M4A vs FLAC
| Format | M4A | FLAC |
|---|---|---|
| Compression | Lossy | Lossless |
| Transparency | — | — |
| Best for | Apple music and voice memos, podcasts | lossless music, audiophile libraries |
Related tools
Frequently asked questions
- Does converting M4A to FLAC re-encode the file?
- The M4A audio is decoded and re-encoded to FLAC with FLAC at lossless compression. There is no video stream involved, so the job is quick even for long recordings.
- What should you know before converting M4A to FLAC?
- FLAC is lossless, but it can only preserve what is already in the M4A file. Detail removed when the M4A was first encoded does not come back — you get a bigger file of the same audio, not a better one.
- Is this M4A to FLAC converter free?
- Yes. You can convert M4A to FLAC online for free, with no account and no watermark.
- Do I need to install software or sign up?
- No. Use the converter from your browser without installing software or creating an account. Files are uploaded to our servers for processing.
- Are my files safe?
- Yes. Files are processed only to complete the conversion and are auto-deleted after 2 hours. We never share them.
- Can I convert multiple M4A files at once?
- Yes. Drop several files to convert them in a batch and download the results as a single ZIP.