Video conversion
Convert AVI to FLAC
Updated Jul 2026
AVI is a video format, and FLAC is a lossless audio format, so converting means pulling out the audio track and leaving the picture behind. A converter reads the AVI, extracts its audio, and saves it as FLAC on your own computer, without uploading the video anywhere.
- Extension
- .avi
- Type
- Video
- Typically
- Legacy Windows video
- Extension
- .flac
- Type
- Audio
- Typically
- Lossless music
Convert AVI to FLAC on your own computer. Nothing uploads.
How to convert AVI to FLAC
- Open Morphjet and drag in the AVI file, or a whole folder of them, that you want to pull audio from.
- Choose FLAC as the output format.
- Convert. Morphjet extracts the audio track and writes a FLAC file next to your original, and the video never leaves your machine.
AVI vs FLAC: what actually changes
| AVI | FLAC | |
|---|---|---|
| What it holds | Video and audio together | Audio only |
| Compression | Lossless container, keeps every detail of the source | Lossless codec, keeps every detail of the audio |
| File size | Very large, video and audio combined | Much smaller, since only the audio remains |
| Compatibility | Common on older Windows systems, less used today | Widely supported by music players and audio gear |
| Typical use | Storing or watching a video | Archiving or listening to just the sound |
When to convert, and when not to
Convert AVI to FLAC when you only care about the sound in a video, like a concert recording, an interview, or a lecture, and you want to keep it in a lossless format for archiving or listening later.
Keep the original AVI if you still want the picture, since extracting the audio to FLAC throws the video away for good.
Why not just use an online converter?
Pulling audio out of a video usually means uploading the whole file to an online extractor, even though you only want the sound, which can mean sending a large video off to a server you don't control. Converting on your own computer skips that upload entirely, the AVI never leaves your machine, and neither does whatever was recorded in it.
Questions
Does converting AVI to FLAC lose any quality?
FLAC itself is lossless, so it keeps whatever audio quality was already inside the AVI. If that audio was already compressed with a lossy codec, that compression happened before conversion and FLAC can't undo it, but if it was stored losslessly, you keep every bit.
What happens to the video part?
It's discarded. Converting to FLAC keeps only the audio track, so if you might want the picture later, hold onto the original AVI.
Does the FLAC keep track titles or other tags?
AVI files don't usually carry music style metadata like artist or album, so there's typically nothing to carry over. You can add your own tags to the FLAC afterward.
Can I do this without uploading the video anywhere?
Yes. Morphjet extracts and converts the audio locally on your computer, so the video file never has to leave your machine or touch the internet.
Morphjet converts AVI, FLAC, and 1,800+ other formats, all on your machine. Launching this July.