How to convert FLV to WEBM
- Add your .FLV file - drop it in the box above or click to browse.
- Convert it to .WEBM in a few seconds.
- Download your new .WEBM file.
What to expect
- FLV's codecs are not allowed in WebM, so a full re-encode is required - always lossy and slower than a simple remux.
- Choosing VP9 or AV1 can hold quality at a smaller size than VP8, but encoding time rises accordingly.
- Flash cue points and scripting metadata are not carried over.
Frequently asked questions
Is FLV to WebM lossless?
No. WebM only permits VP8/VP9/AV1 video and Vorbis/Opus audio, none of which match FLV's H.264/VP6 video or MP3/AAC audio, so the file is fully re-encoded. That is a lossy step and takes real processing time.
Why convert FLV to WebM?
WebM is Google's open, royalty-free format that plays natively in modern browsers and HTML5 video. It is a common target for putting old Flash video on the web without a plugin.
Where does WebM play?
WebM plays in every modern browser and in VLC with no codec pack. FLV needs the discontinued Flash Player and is no longer web-friendly.
What gets lost in the conversion?
Because both video and audio are re-encoded into new codecs, some quality is always lost. Flash cue points and interactive metadata are also dropped.
Programs that convert FLV: Free Studio · MediaCoder · SUPER · Miro Video Converter · Freemake Video Converter · Miro Video Converter for Mac
