-
SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
I love small simulations like this, but I find tiresome having to write all the scaffolding to summarize the results, so I wrote a Python module for quick visualizations
https://github.com/boppreh/carlo
pip install carlo
For those who like to do things a little more visually I recommend the open-sourced Argo[0] for microsoft excel
[0] https://github.com/boozallen/argo/releases
I wrote a Monte Carlo area calculator once. Just draw an arbitrary shape and hit solve. You can increase the number of samples used.
https://victorribeiro.com/monteCarlo/