What happens when you convert WebM to AVI
| Inside a typical WebM | VP8, VP9 or AV1 video with Opus or Vorbis audio |
|---|---|
| Copy without re-encoding | Rarely: the codecs are not compatible, so the video is re-encoded |
| When re-encoded | MPEG-4 Part 2 video with MP3 audio |
| Opens in | Windows Media Player and VLC; phones and browsers usually do not |
Sizes are typical values; your files will vary with content and settings.
WebM 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 converterAVI Audio Video Interleave
AVI is Microsoft's 1992 video container. It is still found in old camera footage, DVD rips and legacy Windows software.
AVI converterHow to use the WebM to AVI Converter
- 1
Choose a WebM file or drop it onto the page.
- 2
Review the video options. The defaults suit most files.
- 3
Click Convert and download your AVI when processing finishes.
Why convert WebM to AVI?
WebM files come from videos saved from websites and from browser-based screen recorders. iPhones, some TVs and many editors play it poorly or not at all. Choose AVI for older players, TVs with a USB port and legacy Windows software.
Frequently asked questions
Will the AVI 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 WebM to AVI re-encode the video?
Rarely: the codecs are not compatible, so the video is re-encoded. A typical WebM contains VP8, VP9 or AV1 video with Opus or Vorbis audio. Otherwise the result is MPEG-4 Part 2 with MP3 audio.
Questions about privacy, file-size limits or conversion speed are answered in the general FAQ.