Video conversion
Convert WebM to FLAC
Updated Jul 2026
WebM is a video format, so converting it to FLAC means pulling out the audio track and saving it losslessly from that point forward. Open the WebM in a converter, choose FLAC, and it extracts and re-encodes the sound, dropping the picture. Doing this on your own computer means the file never has to leave your machine.
- Extension
- .webm
- Type
- Video
- Typically
- Web video
- Compression
- Lossy
- Extension
- .flac
- Type
- Audio
- Typically
- Lossless music
Convert WebM to FLAC on your own computer. Nothing uploads.
How to convert WebM to FLAC
- Open Morphjet and drag in the WebM file, or a whole folder of them at once.
- Choose FLAC as the output format.
- Convert. Morphjet pulls out the audio track and writes it as a FLAC file next to your original, and nothing leaves your machine.
WebM vs FLAC: what actually changes
| WebM | FLAC | |
|---|---|---|
| Contains | Video and audio together | Audio only, no picture |
| File size | Compact, dominated by the video | Larger than the WebM overall, since FLAC doesn't squeeze audio as tightly as a lossy codec does |
| Compression | Lossy, both picture and sound lose some data | Lossless, nothing more is thrown away once it's encoded |
| Compatibility | Plays in browsers and most modern video apps | Opens in essentially all music players and audio editors |
| Usable as music | Awkward, the audio is locked inside a video container | Yes, a plain audio file ready to play, edit, or add to a library |
When to convert, and when not to
Convert WebM to FLAC when you have a video, like a screen recording, a livestream clip, or a downloaded performance, and you only care about the sound, and want it in a format that won't lose any more quality as you copy or edit it.
Keep the original WebM if you might still want the picture, since converting to FLAC throws the video away for good and there's no getting it back.
Why not just use an online converter?
The WebM files people turn into FLAC are often personal, recorded meetings, gigs, voice memos captured as video, things you'd rather not hand to a stranger's server just to get the audio out. An online converter has to upload the whole video to do that. Morphjet extracts the audio right on your own computer, so the file never travels anywhere.
Questions
Does converting WebM to FLAC improve the sound quality?
No. FLAC is lossless from the moment it's created, but it can't restore quality that was already lost when the audio inside the WebM was originally compressed. It just stops any further loss from happening.
What happens to the video part?
It's discarded. FLAC is an audio-only format, so converting a WebM to FLAC keeps the sound and drops the picture entirely. If you might want the video later, keep the original WebM too.
Will the FLAC file keep any metadata, like a title?
FLAC supports tags like title, artist, and album, but WebM videos rarely carry that kind of music metadata to begin with, so there's usually little to carry over. You can add tags yourself afterward.
Can I pull audio out of a WebM without uploading it anywhere?
Yes. A desktop app like Morphjet does the extraction and conversion locally, so the video never leaves your computer or touches the internet.
Morphjet converts WebM, FLAC, and 1,800+ other formats, all on your machine. Launching this July.