Lightweight, GPU-free video composition + rendering engine: a JSON scene-graph IR, CanvasKit/Skia (wasm) or native (Rust + skia-safe) renderer, and an FFmpeg encoder — with a CLI for scripted/agent use.

Isomorphic Three.js + Jolt Physics JSON scene runner for browser and server (Node/Bun).

**Feedeas** is an agentic video creation tool that allows you to programmatically create videos using JSON scene definitions. Perfect for automated content generation, social media posts, and AI-driven video workflows.

JavaScript 3D library

An efficient and visually pleasing implementation of SSAO with an emphasis on temporal stability and artist control.

The Babylon Inspector is a diagnostic tool that makes it possible to view and edit the scene graph, properties of entities within the scene, and more.

MCP server — lets LLMs render videos via the Reelgen JSON scene API

Getting started? Play directly with the Babylon.js API using our [playground](https://playground.babylonjs.com/). It also contains a lot of samples to learn how to use it.

Headless testing toolkit for reform — drive a scene's compositions and assert on the props they compute, with no DOM, timers, or text matching.

The React / DOM host for reform — mounts a renderer-neutral scene as a live React tree with fine-grained, tear-free reactivity.

Wireframe debugger for use with cannon-es https://github.com/pmndrs/cannon-es

A high-performance 2D/3D scene graph library for building interactive visual editors, combining HTML5 Canvas and Three.js to enable facility visualization, data-driven animations, and real-time monitoring dashboards

JavaScript 3D library

CLI tools for Decentraland scene development.

framework agnostic pointer-events implementation for threejs

The renderer-neutral core of the reform framework — typed, headless state, events, reducers, derived values, async/remote data, and compositions built on Effect.

Strict ChartScene schema, types, validation, and canonical serialization.

Federated Events API, the plumbing behind the propagation of UI events into the PixiJS scene graph.

Synthetic Environment Module for IWER

Vibe-coding-first web game engine SDK — JSON-driven scenes on three.js