How do I convert MP4 to FLAC?

Upload your MP4 file using the box above, confirm FLAC as the output format, then select Convert. The converted file is ready to download as soon as processing finishes — usually in a few seconds.

Is converting MP4 to FLAC free?

Yes, and there is nothing to sign up for. Every conversion is free, there is no paid tier, and the limits are the same for everyone.

Will the quality change when converting to FLAC?

Converting to FLAC is lossless, but it cannot restore detail that the original MP4 file already discarded. The result matches the source exactly as it is.

What happens to my file afterwards?

The uploaded file is deleted as soon as the conversion completes, and the converted file is removed automatically once its retention window ends. Download links are signed and expire within minutes.

mp4flac

Convert MP4 to FLAC

Free online converter for MP4 files. Lossless compression with roughly half the size of WAV. Nothing to install, no watermark, and every file is deleted automatically.

Drag and drop your files

Upload a MP4 file to convert it to FLAC. Up to 200 files at once, 10 GB each.

Free · up to 200 files · 10 GB each · files deleted automatically after 168 hours.

About MP4 and FLAC

MP4

H.264/AAC video that plays on virtually any device.

video/mp4

FLAC

Lossless compression with roughly half the size of WAV.

audio/flac

Other MP4 conversions

mp4 to webm
mp4 to mkv
mp4 to mov
mp4 to avi
mp4 to gif
mp4 to mp3
mp4 to wav
mp4 to ogg

Other ways to get FLAC

mp3 to flac
wav to flac
ogg to flac
opus to flac
aac to flac
m4a to flac
webm to flac
mkv to flac