Browse all 80 categories of browser-based science simulations — space, physics, biology, chaos, algorithms, maths and more.
126 categories15,673 simulations63 languagesmysimulator.uk organises 15,673 free, browser-based science simulations into 126 focused categories — from orbital mechanics and quantum physics to genetics, climate systems and generative art. Every category groups simulations that share the same underlying model, so you can move from an easy, intuitive build to a rigorous, research-grade one without leaving the topic.
Use the filters on the left to narrow the list by how many simulations a category contains, or sort alphabetically to jump straight to a subject you already know by name. Every simulation runs instantly in the browser — nothing to install, no sign-up, and every model is free to use in the classroom under a CC BY 4.0 licence.
All 15,673 simulations are grouped into 126 categories by the scientific model they share — for example every orbital-mechanics simulation lives under Space & Astronomy, regardless of whether it's a simple 2D orbit or a full N-body solver. Some simulations also carry an additional cross-cutting ‘element’ tag (fire, water, air, earth, ice, plasma) so you can browse by theme as well as by discipline.
No. Every simulation runs entirely in your browser using WebGL/Canvas — there is nothing to download, no plugin, and no account to create. Just open a category, pick a simulation and it starts immediately.
The full list of categories is rendered as static HTML, so it is crawlable and readable even with JavaScript disabled — you simply won't be able to filter by simulation count or re-sort the list; every category link still works normally.
Yes. Every simulation and category on mysimulator.uk is released under a CC BY 4.0 licence, so teachers and students can use, adapt and share them for educational purposes as long as the source is credited.
New simulations and, occasionally, entirely new categories are added regularly as the underlying model library grows. The count shown at the top of this page always reflects the current total.