This is not possible with classic Robocode on web, which needs a Java Runtime Environment (JRE) to run on a desktop. You need JRE and java installed in order to run it from a desktop, meaning that you need java to be available on your Cromebook.

You might be able to run Robocode Tank Royale (not classic Robocode) from web using the Robocode Tank Royale Web Biewer if you connect to a server running somewhere else.

See more info from the GitHub page for Tank Royale Viewer here:
https://github.com/jandurovec/tank-royale-viewer

Read more here from the Robocode page:
https://robocode.sourceforge.io/

 

Last edit: Flemming N. Larsen 2026-09-12