MP4 to FLAC
Convert MP4 files to FLAC in seconds, for free. Nothing to install.
Files are deleted from the server automatically after 1 h.
Why convert MP4 to FLAC?
- Keep only the sound: save music, a lecture or a podcast from a video.
- FLAC keeps studio quality without compression artifacts — for editing and archiving.
You don't need to install any software to convert MP4 to FLAC. Upload your file, choose FLAC and download the result a few seconds later. The conversion runs on our servers and your file is deleted automatically after 1 h.
MP4 vs FLAC: comparison
| Feature | MP4MPEG-4 Video | FLACFree Lossless Audio Codec |
|---|---|---|
| Developer | MPEG (ISO) | Xiph.Org |
| Released | 2001 | 2001 |
| Type | video | audio |
| Compression | lossy | lossless |
| Opens with | VLC, Windows Media Player, QuickTime | VLC, foobar2000, Windows Media Player |
Tip: choose the bitrate. 128 kbps is enough for speech; 320 kbps is the best quality for music.
How it works
- Choose or drop your MP4 file.
- Pick FLAC as the output format.
- Click “Convert” and download your file.
MP4 to FLAC: questions and answers
Will quality be lost when converting MP4 to FLAC?
No. FLAC stores data without loss, so the result matches the original.
How long does MP4 to FLAC conversion take?
It depends on the length: a short file takes a few seconds, a long video can take a few minutes. Progress is shown as a percentage.
What is the maximum MP4 file size?
Up to 500 MB per file and up to 20 files at once — for free.
Can I convert MP4 to FLAC on my phone?
Yes. TezConvert works in any browser on Android and iPhone — no app needed.
How do I open a FLAC file?
FLAC files open in: VLC, foobar2000, Windows Media Player.
Are my files safe?
Files are used only for the conversion, never shown to anyone, and deleted automatically after 1 h. The original is deleted right after conversion.
⇄ Need the opposite? Convert FLAC to MP4 →