Ross ROSS = Recommend OSS · open-source software intelligence for agents

reactjs/react-transition-group

An easy way to perform animations when a React component enters or leaves the DOM observed · 2026-08-28

github.com/reactjs/react-transition-group · homepage · JavaScript · NOASSERTION (other) observed · 2026-08-28

Health v2 · maintenance only

54/100

  • Activity 70
  • Release rhythm 8
  • Longevity 100

Flags: no_license

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 3573
  • days_rel: n/a
  • days_push: 181
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

10228 stars · 639 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A small React component library (Transition, CSSTransition, SwitchTransition, TransitionGroup) that manages component mounting/unmounting states over time to make enter/exit animations easy. It exposes transition stages and manages classes rather than animating styles itself.

Use cases

  • animate react components entering and leaving the dom
  • add css transitions on mount and unmount in react
  • fade in and out lists when items are added or removed
  • manage transition lifecycle stages for react components
  • replace react-addons-css-transition-group in modern react

When to choose

  • you use React and want declarative enter/exit transitions with CSS classes
  • you need fine control over transition stages without a full animation engine
  • you want a tiny dependency for mount/unmount animation state

When to avoid

  • you want a library that animates styles for you, like react-spring or framer-motion
  • you are not using React
  • you need complex physics-based or gesture-driven animations

Facets

library · maturity maintenance

animation ui-components state-management frontend web-development web-design browser cross-platform react css-transitions enter-exit-animations transition-management nodejs

3 sources

Member repositories

RepositoryRoleHealth v2
reactjs/react-transition-groupmain54

For agents

markdown · JSON · MCP: product_card(name="reactjs/react-transition-group")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem