Video Converter
Convert video to MP4, WebM, MOV, or MKV locally in your browser. No upload, no signup.
Drop videos to convert it
Select one or more local video and export MP4, WebM, MOV, or MKV where browser codecs support it.
Up to 10 files · 1 GB total · Output MP4/WebM/MOV/MKV · Processed locally
Questions
Does Video Converter upload my video?
No. Videos are converted locally in your browser tab and are never uploaded to Utilumo.
Which output formats are supported?
The tool can export MP4, WebM, MOV, or MKV when the browser can encode compatible tracks for that container.
Why can conversion fail?
Conversion depends on the browser's local WebCodecs support. If the source cannot be decoded or the target cannot be encoded, the tool shows an error.
Does Utilumo upload my input?
No. This tool is designed for local browser processing and does not send your input to a server.
Do I need an account?
No. Utilumo tools are built to work without accounts or sign-in.