# Popmotion/popmotion

Simple animation libraries for delightful user interfaces

Repository: https://github.com/Popmotion/popmotion
Canonical: https://ross.abutalabs.com/products/popmotion
Homepage: https://popmotion.io
Language: JavaScript
License Family: other
Topics: tween, motion, physics, animation, svg, css, javascript-motion-engine, popmotion
Last push: 2024-03-12T00:37:37+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4399, "days_push": 905, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 20167, forks 665 (observed 2026-08-28T04:11:29.794605+00:00)

## What it is
Popmotion is a low-level JavaScript animation library providing composable keyframes, spring, and decay animations for numbers, colors, and complex strings. It is framework-agnostic, tiny (~4.5kb for animate), written in TypeScript, and portable to any JavaScript environment.

## Use cases
- animate numbers, colors, and css strings in the browser
- create spring physics animations for ui elements
- animate svg path definitions and box shadows
- build custom animation systems on a composable low-level toolbox
- add keyframe and repeat/delay animations to javascript apps
- integrate motion into any framework without a heavy dependency

## When to choose
- you need a tiny, framework-agnostic animation engine
- you want spring physics or keyframe animation of arbitrary values and strings
- you are building your own higher-level animation or gesture library
- you need individually importable functions to keep bundle size small

## When to avoid
- you want a batteries-included declarative animation framework with components
- you need React-specific animation APIs out of the box (consider Framer Motion, by the same author)
- you require css transition orchestration or scroll-linked animations as built-in features
- you need a project with an explicit license file or very active recent development

## Facets
- artifact type: library
- maturity: maintenance
- function: animation
- domain: frontend, web-development, graphics
- platform: browser, cross-platform
- tags: tween, spring-physics, keyframes, javascript, motion, svg-animation, css-animation, typescript, nodejs

## Member repositories
- Popmotion/popmotion (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:29.794605+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:59:19.510951+00:00, confidence not recorded.
  - readme: https://github.com/Popmotion/popmotion (fetched 2026-08-28T04:11:29.794605+00:00, sha 28198425b79c)
- Data as of 2026-08-30T08:39:29.467469+00:00.