Convert MP4 to FLAC
Extract the audio from MP4 videos and save it as FLAC — ideal for archiving CDs and hi-res music without quality loss.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Keep this tab open — the conversion runs on your device, nothing is uploaded.
Add more files above to keep converting.
How to convert MP4 to FLAC
- 1
Tap Choose files and select one or more MP4 files (or drag them in).
- 2
Check that FLAC is selected. Use Advanced options for bitrate, channels or trimming.
- 3
Press Convert. Everything happens on your device — no upload, no waiting in a queue.
- 4
Your FLAC downloads automatically. Converting several files? Grab them all as a ZIP.
MP4 vs FLAC
Only the sound is kept — the picture is dropped, so the FLAC file is far smaller than the MP4 video.
| MP4 | FLAC | |
|---|---|---|
| Full name | MPEG-4 Part 14 | Free Lossless Audio Codec |
| Type | Video | Audio |
| Compression | Lossy | Lossless |
| Developed by | MPEG | Xiph.Org |
| Introduced | 2001 | 2001 |
| Plays on iPhone | ✓ Yes | ✓ Yes |
| Plays on Android | ✓ Yes | ✓ Yes |
| Plays on Windows | ✓ Yes | ✓ Yes |
| Plays on Mac | ✓ Yes | ✓ Yes |
About MP4 and FLAC
MP4: MP4 is the universal video format. With H.264 video and AAC audio it plays on every iPhone, Android phone, smart TV, browser, WhatsApp, Instagram and YouTube.
FLAC: FLAC is an open lossless format that shrinks audio to 50–60% of WAV size without losing any quality. It is the favourite format of audiophiles and hi-res music stores.
Frequently asked questions
How do I convert MP4 to FLAC on my phone?
Will converting MP4 to FLAC reduce quality?
Can I convert only part of the MP4?
Is this MP4 to FLAC converter free?
Are my files uploaded to a server?
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