Convert for playback
Turn camera clips and screen recordings into formats that work across browsers, phones, editors, and TVs.
Video converter
Convert video without uploading it.
Change video formats with FFmpeg directly in your browser. Convert MP4, WebM, MKV, MOV, AVI, and more while keeping your source files on your device.
What you can do
One place for everyday format conversion.
Use the same FFmpeg engine for simple exports or more controlled workflows.
Prepare files to share
Export to a widely supported container before sending a clip to a client, teammate, or social platform.
Keep control
Combine conversion with trimming, resizing, audio extraction, or other operations in the full workspace.
Convert a video in three steps.
1
Load FFmpeg
Load the browser engine once. It is cached for later sessions.
2
Choose a format
Select the output container that fits your destination.
3
Process and download
Run the conversion locally and save the finished file.
Private by design. FFmpeg Onlion processes files with WebAssembly in your browser. Your original video is not sent to a remote conversion server.
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