M4A to FLAC Converter
Convert M4A files to FLAC in seconds, right in your browser. Drop in one file or a whole folder, pick your quality settings and download - nothing is uploaded to a server.
Drop M4A files here
MP3, WAV, FLAC, M4A, OGG, OPUS, AAC, AIFF, WMA, AMR, MP4, MOV & more · Processed on your device - nothing is uploaded
How to convert M4A to FLAC
- Click "Choose files" or drag your M4A files onto the page.
- Make sure "FLAC" is selected as the output format.
- Optionally click Edit to trim, adjust volume or add effects.
- Click Convert, then Download your FLAC files.
Why convert M4A to FLAC?
FLAC is lossless, so further editing and re-saving won't reduce quality any more. (It can't restore detail that M4A compression already removed.)
FLAC is best for hi-fi music collections, archiving CDs and lossless streaming. Supported by Android, iOS 11+, Windows 10+, macOS, most hi-fi players and browsers.
Will I lose quality?
Converting M4A to FLAC keeps all the quality that is in your M4A file - nothing more is lost. However, it cannot recover detail removed when the M4A was originally created, and the FLAC file will be larger.
M4A vs FLAC
| M4A | FLAC | |
|---|---|---|
| Full name | MPEG-4 Audio (AAC) | Free Lossless Audio Codec |
| Type | lossy | lossless |
| Best for | iPhone, iTunes/Apple Music, YouTube uploads and efficient music storage | hi-fi music collections, archiving CDs and lossless streaming |
| Typical size | ~1.4 MB at 192 kbps per minute | ~5-6 MB at 16-bit / 44.1 kHz per minute |
| Compatibility | Excellent on Apple devices, Android, Windows, browsers and most modern players. | Supported by Android, iOS 11+, Windows 10+, macOS, most hi-fi players and browsers. |
| Developed by | MPEG / Apple (2001) | Xiph.Org Foundation (2001) |
M4A to FLAC: questions
How do I convert M4A to FLAC?
Open this page, add your M4A file, make sure FLAC is selected as the output format and click Convert. Your FLAC file is ready to download in seconds.
Will converting M4A to FLAC lose quality?
Converting M4A to FLAC keeps all the quality that is in your M4A file - nothing more is lost. However, it cannot recover detail removed when the M4A was originally created, and the FLAC file will be larger.
Is this M4A to FLAC converter free and safe?
Yes. It's free with no watermark or sign-up. Files are processed locally in your browser, so your audio is never uploaded or stored on our servers.
Can I convert many M4A files to FLAC at once?
Yes - add up to 5 files at a time on the free plan (unlimited with Pro), convert them all with one click and download them as a ZIP.
What is the difference between M4A and FLAC?
M4A (MPEG-4 Audio (AAC)) is a compressed (lossy) format, aAC audio in an MPEG-4 container. Better quality than MP3 at the same bitrate and the native format of Apple Music and iTunes. FLAC (Free Lossless Audio Codec) is a lossless format: lossless compression that shrinks audio to roughly 50-60% of WAV size without losing a single bit of quality.
Does it work on Mac, Windows, iPhone and Android?
Yes. The M4A to FLAC converter runs in any modern browser - Chrome, Safari, Edge or Firefox - on desktop and mobile. No software to install.