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Y4M to FLAC converter

Extract FLAC audio from Y4M video in seconds, free. No upload, no sign-up, no size limit: it runs in your browser.

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Quick answer: To extract FLAC audio from Y4M video, add the Y4M file to the iHateFiles Y4M to FLAC converter and press Convert. The conversion runs in your browser, so the file is never uploaded, and it is free with no sign-up, watermark or size limit. Lifts the soundtrack out of the video and saves it as FLAC. The picture is discarded; nothing is re-recorded.

Should you convert Y4M to FLAC?

Worth doing when you want the soundtrack of a Y4M on its own: a podcast, an interview, a piece of music from a video. Choose a higher bitrate than you think you need, because the FLAC is encoded from the video's audio rather than from a master.

Taking the sound out of Y4M

A Y4M file holds a picture track and a sound track side by side. This keeps the sound and discards the picture, so what you get is the FLAC on its own at whatever bitrate you choose. Nothing about the Y4M original is altered.

Y4M and FLAC side by side

 Y4MFLAC
CompressionLosslessLossless
TransparencyNoNo
AnimationNoNo
Written hereNoYes

What usually goes wrong

About the Y4M. A few seconds of Y4M can be larger than a whole film in MP4. That is the format doing its job.

About the FLAC. Converting an MP3 to FLAC produces a large file that sounds exactly like the MP3. Lossless compression preserves what it is given, including the damage.

How to convert Y4M to FLAC

  1. Add your Y4M file. It is read from your disk and stays there.
  2. Check the settings. The output format is already set to FLAC.
  3. Press convert and the FLAC file is saved back to your device.

About Y4M files

Questions

How do I convert Y4M to FLAC?

Open this page, add your Y4M file, and press convert. The file is decoded and re-encoded by your own browser and saved back to your device. Nothing is uploaded.

Is this Y4M to FLAC converter free?

Yes, completely. There is no account, no sign-in, no watermark and no daily limit, because there is no server doing the work. Your own device does it.

Are my files uploaded anywhere?

No. There is no upload endpoint. The conversion runs inside this browser tab, so your file never leaves your device. You can open your browser's network panel and watch: nothing carrying your file is sent.

Is there a file size limit?

No fixed limit. Because the work happens on your machine there is no server quota. The only ceiling is your own device's memory, which for video means very large files may be slow.

Does extracting audio reduce the quality?

The soundtrack is re-encoded to FLAC, so there is one generation of loss at the bitrate you choose. Pick a higher bitrate, or a lossless target like WAV or FLAC, to avoid it.

Can I convert several Y4M files at once?

Yes. Add as many as you like and they are converted one after another, then offered as a single ZIP.