Video Converter
Transcode verified MP4 and WebM video to MP4 or WebM in your browser.
MP4 / WebM
How to use Video Converter
- Choose a supported video or audio file.
- Set the video converter options and preview them.
- Process the file and download the validated output.
Processing and privacy
The supported processing runs locally in your browser.
This tool performs real FFmpeg WebAssembly transcoding to H.264 + AAC MP4 or VP8 + Opus WebM, then independently validates the output container, streams, duration, dimensions, MIME type, and browser playback support.
Common questions
Is Video Converter available now?
Available now as a browser-only beta for verified MP4 and WebM inputs.
Where does processing happen?
The supported processing runs locally in your browser.
Related Video tools
- Video Compressor — Shrink file size while preserving visual quality.
- Screen Recorder — Record your screen in a format supported by this browser.
- Camera Recorder — Record your webcam with optional microphone audio.
- Video to MP3 — Extract the soundtrack as an MP3 file.