Core logic for TurnBox — pure functions for 3D box animation geometry, state, and transitions (no DOM dependency)

A JavaScript game engine written with global state, immutability, and pure functions in mind. Have fun(ctional programming) with it!

Assertion library based on pure functions

The Mentat engine: scope algebra, conflict derivation, cascade invalidation, and the amendment log. Pure functions, no I/O.

Simple library to create complex systems out of pure functions

Tools to simplify pure functions

A library for testing React components like they are pure functions.

Core library for Tokens-Studio-shaped design token systems — loaders, theme composition, reference resolution, and DTCG-aware analysis primitives. Pure functions, framework-agnostic.

Core library for the Component Description Format (CDF) — parsing, validation, profile inference, token-tree, and analysis primitives. Pure functions, framework-agnostic.

Pure functions

Framework-agnostic QR code generator — pure functions that return SVG paths (or a full SVG string) with customizable module shapes, styled finder patterns and a logo knockout. Zero dependencies.

Run pure functions as web workers

A pure JavaScript implementation of Sass.

An optimization for calling pure functions in the template of an Angular application

Zero-dependency game math primitives — lerp, clamp, damp, smoothDamp, smoothstep, easings, shortest-path angle interpolation, moveToward, wrap, repeat, pingpong, snap, deadzone. Tree-shakeable pure functions, <1KB gzipped.

The Alfiz Client: permission grammar, catalog, closure evaluation, check shapes, caching, and the provider contract. Pure functions over provider-supplied data — no storage, no I/O.

Auto-import pure functions from utils folder and extend JavaScript prototypes globally in your Vite project

Helper function to annotate paths and nodes with #__PURE__ comment

40 browser-fingerprint consistency rules as pure functions: score a JS fingerprint against itself and against what the TLS/HTTP layer saw. Bot and anti-detect browser detection, no dependencies.

Render interfaces using pure functions and virtual DOM