Turn M4A audio files into FLAC. It is converted in your browser, so the file never leaves your device.
Drop M4A files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop M4A files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. Open Options first if you want to change the defaults. The work happens in this tab.
Save the FLAC, or download everything as one ZIP if you converted several files.
The M4A to FLAC converter is part of this page and runs inside your browser. Your audio files are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
M4A is refused by some car stereos, older players, editors and upload forms. FLAC keeps full quality at about half the size of WAV. M4A is at home in music and voice memos on Apple devices; FLAC is the usual choice for archiving music at full quality. FLAC cannot bring back detail that M4A compression already removed; it simply stores the result without further loss, in a larger file.
The defaults suit most files. Under Options you can trim the start and end.
The conversion uses your browser's own video and audio codecs (WebCodecs), with hardware acceleration where the device has it; the file is read from disk as it goes and can be up to 2 GB. Where the browser lacks a codec, the page falls back to the compatibility engine.
M4A is an MP4 file that contains only audio, usually AAC. iPhone Voice Memos and the iTunes Store use it. It sounds better than MP3 at the same size but is not accepted everywhere MP3 is.
Opens in Apple devices, Android, current browsers; some car stereos and older players do not
M4A converterFLAC compresses audio to roughly half the size of WAV without losing anything, like a ZIP for sound. It is the standard for lossless music collections. Apple's Music app is the notable holdout.
Opens in Android, Windows, VLC, most hi-fi players; Apple Music does not import it
FLAC converter| M4AM4A audio | FLACFLAC audio | |
|---|---|---|
| Stands for | MPEG-4 Audio | Free Lossless Audio Codec |
| Type | Audio | Audio |
| Compression | Lossy (AAC); lossless when it holds ALAC | Lossless |
| Introduced | The early 2000s, by the Moving Picture Experts Group (popularised by Apple) | 2001, by Josh Coalson and the Xiph.Org Foundation |
| Opens in | Apple devices, Android, current browsers; some car stereos and older players do not | Android, Windows, VLC, most hi-fi players; Apple Music does not import it |
| Best for | Music and voice memos on Apple devices | Archiving music at full quality |
| File extension | .m4a | .flac |
No. The M4A to FLAC conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
No further quality is lost: FLAC stores the decoded audio exactly. It cannot restore what M4A compression already discarded, and the file will be larger.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the M4A file, press Convert and save the FLAC. There is nothing to install.
Yes. Files up to 2 GB are accepted. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.