Convert Free Lossless Audio Codec (.flac) to MPEG-4 Audio (.m4a) online for free. Fast, secure audio conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .flac file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .m4a file when it's ready.
M4A is the standard audio-only extension for MPEG-4 containers, used by Apple for everything from iTunes Store purchases to Voice Memos recordings. An M4A file can contain either AAC (lossy) or ALAC (lossless) audio. Converting FLAC to M4A means re-encoding or remuxing into this widely supported Apple-ecosystem format. This is the recommended conversion for anyone who uses Apple devices, iTunes, or any software that expects MPEG-4 audio containers.
M4A is the native audio format for Apple's ecosystem. iTunes Store downloads are 256 kbps AAC in M4A. Apple Music lossless streams deliver ALAC in M4A. GarageBand exports M4A. Voice Memos record M4A. By converting FLAC to M4A, your files gain full compatibility with the Music app's metadata system (including lyrics, artwork, and gapless playback), iCloud Music Library sync, and Spotlight search indexing on macOS.
FFmpeg decodes the FLAC bitstream to PCM and encodes to either AAC-LC (lossy, using the native aac or libfdk_aac encoder) or ALAC (lossless) inside an M4A container. The M4A container (technically .m4a extension on an MPEG-4 Part 14 file) supports rich metadata via iTunes-style atoms: title, artist, album, genre, track/disc number, compilation flag, artwork, lyrics, encoder info, and more. Gapless playback is enabled through iTunSMPB metadata, and chapters can be added for audiobook-style navigation.
ALAC in M4A is lossless — bit-identical to the FLAC source. AAC at 256 kbps in M4A matches iTunes Store quality and is transparent for most listeners. The M4A container itself adds no quality overhead. When using AAC, the choice between FFmpeg's native encoder and libfdk_aac has a minor but measurable quality difference at bitrates below 128 kbps; at 256 kbps the difference is negligible.
| Device | FLAC | M4A |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Native |
| iPhone/iPad | Partial | Native |
| Android | Native | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Resolution: N/A
Bitrate: 256 kbps
AAC format required
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
FLAC to M4A is the definitive conversion for Apple users. Choose ALAC for lossless or AAC for compact files — both benefit from M4A's superior metadata support compared to raw AAC or MP3.
Biztonsagos atvitel
HTTPS titkositott feltoltes
Adatvedelmi prioritas
A fajlok feldolgozas utan automatikusan torlodnek
Regisztracio nem szukseges
Azonnal kezdhet konvertalni
Mindenhol mukodik
Barmely bongeszo, barmely eszkoz
| No |
| Jellemzo | FLAC | M4A |
|---|---|---|
| Teljes nev | Free Lossless Audio Codec | MPEG-4 Audio |
| Kiterjesztes | .flac | .m4a |
| Leginkabb ajanlott | Lossless compression | Better than MP3 |