I am looking for an open source autograder to be used in grading Python and Java assignments. Any suggestions?

I’m in the midle of developing one, it works fine with Python, but Java is very experimental.

These are the exercises we’ve built so far:

If you want to contribute I will be more than happy to give you a tour and maybe you can help us build the documentation for teachers (creators).

We are going to publish the tool officially here when its finished: