jwagner/simplex-noise.js

Health v2 · maintenance only

Adoption not part of the score

1848 stars · 128 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A fast, dependency-free simplex noise library in JavaScript/TypeScript supporting 2D, 3D, and 4D noise with optional seeding via a custom PRNG. It works in both the browser and Node.js, is tree-shakeable, and is very small (~2k minified+gzipped).

Use cases

• generate procedural terrain for a game
• create procedural textures like wood grain
• add film grain to a video or image filter
• generate a 3D voxel world
• create plasma or animated background effects in the browser
• generate deterministic noise using a seed value
• add organic randomness to generative art

When to choose

• you need fast simplex noise in JavaScript or TypeScript
• you want a tiny, dependency-free, tree-shakeable noise library
• you need 2D, 3D, or 4D noise with optional reproducible seeding
• you need noise that works in both browser and Node.js

When to avoid

• you need Perlin noise or other noise variants specifically
• you need GPU/shader-based noise for high-performance graphics
• you need higher-dimensional noise beyond 4D
• you work outside the JavaScript ecosystem

Facets

library · maturity stable

graphics data-generation sdk graphics browser cross-platform simplex-noise procedural-generation noise-functions seeded-random tree-shakeable dependency-free 2d-3d-4d-noise procedural-textures procedural-terrain game-development nodejs javascript typescript

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