Audio
Convert M4A to MP3 Online — Free
M4A is Apple's preferred audio container (AAC inside). Many apps and older devices want MP3 instead. ReFile re-encodes M4A to MP3 at any bitrate, preserving metadata (title, artist, album art) by default.
- No signup to try
- Sandboxed processing
- Files deleted in 24 h
What this does
- Default: 192kbps MP3, metadata preserved
- Higher quality — 'MP3 at 320kbps'
- Strip metadata for privacy — 'MP3, remove all tags'
How it works
- 1
Upload your M4A
Drop it above, or click to pick from your device. We validate the format immediately — no spinning on a file we can't process.
- 2
Run the conversion
The recipe runs in an isolated cloud sandbox — same as every other ReFile job. No AI guessing involved; it's a hand-written command that does one thing.
- 3
Download the MP3
Result lands in seconds. Files auto-delete from our servers after 24 hours; signed download URLs expire in the same window.
Frequently asked
- Will the MP3 sound the same?
- At 192kbps or higher, the difference is inaudible to almost everyone. AAC (the codec inside M4A) is slightly more efficient than MP3, so the MP3 file will be a touch larger.
- Does the album art carry over?
- Yes — ReFile copies ID3 tags including embedded art by default.