Convert MP4 to FLAC — Free & Private
Extract FLAC audio from MP4 video files directly in your browser. No uploads, no accounts, completely free.
How to convert MP4 to FLAC
- 1
Select your MP4 file
Click or drag your MP4 file onto the converter above.
- 2
Convert to FLAC
The output format is pre-set to FLAC. Click the convert button to process your file.
- 3
Save instantly
Your converted FLAC file is ready — save it to your device, no email required.
MP4 to FLAC — FAQ
Is the MP4 to FLAC converter really free?
Yes, completely free. No hidden fees, no watermarks, no file size limits. LocalConvert is open source and free forever.
Are my MP4 files safe?
Absolutely. Your files never leave your browser. All MP4 to FLAC conversion happens using WebAssembly running locally on your device — no uploads, ever.
How long does MP4 to FLAC conversion take?
Most conversions finish in seconds. Larger files may take a little longer depending on your device's speed and memory.
What's the difference between MP4 and FLAC?
MP4 is the most universally compatible video format. FLAC is a lossless audio format that preserves full quality.