Developer of the tool here. With the recent shut down of Quantopian, I thought why not start developing a similar system.

I have already been working on this for a few months and it just went live a few weeks ago - I wanted to make it a paid backtester but with the shutdown, I figured people would want different alternatives, so here it is. Completely free and offers many strategies for testing.

If there is enough demand, we can add a lot more stuff.

Happy to answer any questions.