react-spring-physics

Physics-based animation for React applications combining React Spring's declarative spring animations with Popmotion's low-level physics utilities.

React Spring provides spring-physics animations that feel natural and interruptible. Unlike duration-based animations, springs calculate motion based on physical properties (mass, tension, friction), resulting in organic, realistic movement. Popmotion complements this with composable animation functions for keyframes, decay, and inertia.

Springs animate values from current state to target state using physical simulation:

Physics-based animation library combining React Spring (spring dynamics, gesture integration, 60fps animations) and Popmotion (low-level composable animation utilities, reactive streams). Use when building fluid, natural-feeling UI animations, gesture-driven interfaces, physics simulations, or spring-loaded interactions. Triggers on tasks involving React Spring hooks, spring physics, inertia scrolling, physics-based motion, animation composition, or natural UI movements. Alternative physics approach to motion-framer for more physically accurate animations. Source: freshtechbro/claudedesignskills.