https://seeing-theory.brown.edu/

https://www.3blue1brown.com/

https://playground.tensorflow.org/

I wish there are more researches on text prompt based generation of information rich diagarms/animations(flow chart, algo visualisation).

Interactive visual explanations of math and algorithms, with motivating examples from computer games. https://www.redblobgames.com/

The world's first linear algebra book with fully interactive figures. http://immersivemath.com/ila/index.html

The Textbook of the Future. Interactive. Personalised. Free. https://mathigon.org/

Structure and Interpretation of Computer Programs. Interactive Version https://xuanji.appspot.com/isicp/

An Interactive Introduction to Fourier Transforms http://www.jezzamon.com/fourier/index.html

Clear, intuitive lessons about imaginary numbers, exponents, and more. https://betterexplained.com/

An Interactive Introduction To Quantum Computing http://davidbkemp.github.io/QuantumComputingArticle/

The website of Martin O'Leary artist, designer, teacher, researcher. http://mewo2.com/

A Visual and Interactive Guide to the Basics of Neural Networks https://jalammar.github.io/visual-interactive-guide-basics-n...

Interactive demos on network theory, game theory, trust etc. https://ncase.me/

An interactive explanation of curves and surfaces https://ciechanow.ski/curves-and-surfaces/

Introduction to geometric algebra — an invertible vector product and the implication of having one. https://mattferraro.dev/posts/geometric-algebra

Interactive visualizations for different topics from physics and mathematics. Includes trigonometry, polynomial regression, and Bézier splines https://visualize-it.github.io/

Assorted tutorials on computer graphics, size coding, and maths. Includes a mini-library of signed distance functions. https://www.iquilezles.org/www/index.htm

A free, online book for when you really need to know how to do Bézier things. https://pomax.github.io/bezierinfo/#explanation

A visual overview of commonly used creative coding related techniques and algorithms. https://www.notion.so/Creative-coding-algorithms-techniques-...

A Visual and Interactive Introduction to Complex Analysis. https://complex-analysis.com/

A collection of visualisation on linear algebra and geometry. https://intuitive-math.club/

Sublucid Geometry — a place for uncommon knowledge. https://zalo.github.io/

And a shameless plug — a collection of interactive tutorials, demos, and quizzes about mathematics, algorithms and programming. https://wordsandbuttons.online/