Convert m4a to flac
Converted on your device. Files never leave this tab. Output tops out around 2 GB.
Nothing is uploaded
The converter runs inside this page. Cut your network after it loads and it still works.
No account, no daily limit
No sign-up, no daily limit, no watermark, no queue behind other people's files. Batch as many M4A files as you like.
Real FLAC output
Encoded by ffmpeg, the same library the command-line tools use — not a renamed extension.
About M4A
MPEG-4 Audio
An audio-only MPEG-4 file, the format iTunes and Apple Music use. It usually holds lossy AAC and sometimes lossless ALAC. Use it for iPhones, Macs and iTunes libraries, where it plays and tags natively.
About FLAC
Free Lossless Audio Codec
A lossless codec from Xiph.Org, first released in 2001, that typically shrinks CD audio to 50 to 70 percent of its WAV size and decodes to identical samples. Use it to archive music and CD rips without losing any quality.