Convert webm to avi
Converted on your device. Files never leave this tab. Output tops out around 2 GB.
Nothing is uploaded
The converter runs inside this page. Cut your network after it loads and it still works.
No account, no daily limit
No sign-up, no daily limit, no watermark, no queue behind other people's files. Batch as many WEBM files as you like.
Real AVI output
Encoded by ffmpeg, the same library the command-line tools use — not a renamed extension.
About WEBM
WebM
An open container from Google, launched in 2010 and based on Matroska, holding VP8, VP9 or AV1 video with Vorbis or Opus audio. Convert from WebM to MP4 for editors, phones and apps that handle MP4 better.
About AVI
Audio Video Interleave
Microsoft's RIFF-based video container from 1992. It is mostly found in older camera footage and DivX or Xvid files. Convert AVI to MP4 to play old clips on phones and current players, usually at a smaller size.