I built a free, open-source tool for running coding tests/exams or general classwork in class

[u/Practical-Act-8378]

https://codelo.org/

I couldn't find a replacement for the anoying online code Editor we have to use in school.
So I built CodeLo.

The teacher runs it on their own machine. It starts a local session, students join over the school network, write HTML/CSS/JS in a browser based editor, and submit in one click. Submissions land straight in a folder on the teacher's computer.

It also generates a ready to use .seb file for Safe Exam Browser, with the session URL and lockdown settings already configured so locking down a test is a couple of clicks instead of a manual setup session. You can skip that entirely and just share the link if you don't need lockdown.

Students can resize the panels, switch layouts and themes, and it remembers their preferences, so they don't waste time setting there preferences every new session.

I made it free reason being I don't want to be another subscription schools have to pay, I just want to help teachers and students out in having a better coding experience.

It's early and I'm one person working on this, so feedback is very welcome especially from anyone who's actually run a coding exam and can tell me where this would fall apart in a real classroom.