christinecha/choreographer-js

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

1995 stars · 118 forks observed · 2026-08-28

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

Choreographer-js is a small JavaScript library for managing complex CSS animations driven by arbitrary numeric inputs like scroll position, mouse coordinates, or timestamps. It lets you declaratively define animation ranges and interpolate CSS style values based on those inputs.

Use cases

• animate elements based on scroll position
• create parallax effects tied to mouse movement
• interpolate css opacity or transforms over a numeric range
• build scroll-driven landing page animations
• run custom non-css animation functions at a given position

When to choose

• you need scroll- or mouse-driven css animations with minimal setup
• you want a tiny dependency-free-feeling animation helper rather than a full animation engine
• you need to interpolate css values from arbitrary numeric inputs

When to avoid

• you need a maintained library with active support and recent releases
• you need complex timeline or keyframe-based animation sequencing
• you need physics-based or spring animations
• you need framework-integrated animation (react/vue) with modern tooling

Facets

library · maturity abandoned

animation frontend web-development browser css-animations scroll-animations mouse-animations javascript nodejs

Member repositories

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