How does the video joiner work?

Videos are processed entirely in your browser using FFmpeg WebAssembly. No files are uploaded to any server.

What video formats are supported?

MP4, WebM, MOV, and AVI files are supported. The output will be in MP4 format.

The practical limit depends on your device's memory. For best results, keep total input under 500MB.

Tools

Combine multiple video clips into one — merge MP4, WebM, and more. 100% in browser.

Upload videos to join

MP4, WebM, MOV, AVI — up to 200 MB each