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ConvertAnyVideo

MP4 to FLAC Converter

Extract the audio from MP4 videos and save it as FLAC. Pick the bitrate, trim the start and end, and download in seconds.

or drop files here

Up to 1 GB per file · Files never leave your device

  • 100% free
  • No sign-up
  • No upload — private
  • No watermark

How to convert MP4 to FLAC

  1. Add your MP4 files

    Click “Choose Files” or drag and drop your MP4 videos onto this page.

  2. FLAC is selected

    The output is already set to FLAC. Open Advanced settings if you want to change the bitrate or trim the audio.

  3. Convert and download

    Click Convert. Your FLAC file is ready in moments — nothing is uploaded.

About the formats

MP4

MPEG-4 Part 14

MP4 is the most widely supported video format today. It usually stores H.264 or H.265 video with AAC audio and plays on almost every phone, browser, TV and editing app.

FLAC

Free Lossless Audio Codec

FLAC compresses audio without losing any quality. It is the favourite format of audiophiles and music archives.

Frequently asked questions

How do I convert MP4 to FLAC?

Click “Choose Files” and select your MP4 file (or drag it onto the page). FLAC is already selected as the output, so just click Convert and download your FLAC file when it’s ready.

Will the audio quality change?

FLAC is lossless, so the sound is saved exactly as it is in the video.

Is it safe to convert MP4 files here?

Yes. Conversion runs inside your own web browser, so your files are never uploaded to our servers or anyone else’s. Nobody can see them, and nothing is stored after you close the tab.

Is the MP4 to FLAC converter free?

Yes, it’s completely free. There’s no sign-up, no watermark and no limit on how many files you convert. Each file can be up to 1 GB.

Can I convert several MP4 files at once?

Yes. Add as many MP4 files as you like and convert them in one go, then download them one by one or together as a ZIP file.

Convert MP4 to other formats

Convert other formats to FLAC