Watermarker

Free. Runs in your browser.

Your videos will get shared. Make sure your logo goes with them. Pick a video, drop your logo on the preview, drag it where you want it, and get a watermarked MP4 back.

Why I ask: I might reach out with a question about how to improve this tool, or to mention other cool tools I build. I will never give your email address to anyone else. You only have to do this once per browser.
Want to see what it does first? Read the help page.