PixiJS
An open-source web 2D renderer with sprites, textures, filters, text, asset loading, and WebGL/WebGPU backends.
Why use it
It reduces rendering boilerplate for custom game frameworks, complex UI, and interactive visualization while retaining control.
Where it fits
Find engines, frameworks, code libraries, version control, and production automation.
What to check
It is a renderer, not a complete engine; physics, scenes, input semantics, and game architecture need other layers.