What happens when you convert FLV to WebM
| Inside a typical FLV | H.264 or Sorenson Spark video with AAC or MP3 audio |
|---|---|
| Copy without re-encoding | Rarely: the codecs are not compatible, so the video is re-encoded |
| When re-encoded | VP8 video with Vorbis audio |
| Opens in | all current browsers and VLC; iPhone apps, PowerPoint and many editors do not |
Sizes are typical values; your files will vary with content and settings.
FLV Flash Video
FLV was the Flash Player video format behind early YouTube. Flash is gone, so FLV files now need converting before modern devices will play them.
FLV converterWebM WebM Video
WebM is an open, royalty-free container built for the web, usually holding VP8 or VP9 video with Opus or Vorbis audio. Browser screen recorders and many web apps save WebM by default.
WebM converterHow to use the FLV to WebM Converter
- 1
Choose a FLV file or drop it onto the page.
- 2
Review the video options. The defaults suit most files.
- 3
Click Convert and download your WebM when processing finishes.
Why convert FLV to WebM?
FLV files are leftovers from the Flash era: old video downloads, game captures and livestream archives. No modern browser or phone plays FLV. Choose WebM to embed video on a website using open, royalty-free codecs.
Frequently asked questions
Will the WebM lose quality?
Both formats are lossy, so converting re-encodes the data once more. Using a high quality setting keeps the generational loss very small. Avoid converting the same file back and forth repeatedly.
Does converting FLV to WebM re-encode the video?
Rarely: the codecs are not compatible, so the video is re-encoded. A typical FLV contains H.264 or Sorenson Spark video with AAC or MP3 audio. Otherwise the result is VP8 with Vorbis audio.
Questions about privacy, file-size limits or conversion speed are answered in the general FAQ.