• Sensors
• UI
• Animations
  • useRaf — re-renders component on each requestAnimationFrame.
  • useInterval and useHarmonicIntervalFn — re-renders component on a set interval using setInterval.
  • useSpring — interpolates number over time according to spring dynamics.
  • useTimeout — re-renders component after a timeout.
  • useTimeoutFn — calls given function after a timeout.
  • useTween — re-renders component, while tweening a number from 0 to 1.
  • useUpdate — returns a callback, which re-renders component when called.
• Side-effects
• Lifecycles
  • useEffectOnce — a modified useEffect hook that only runs once.
  • useEvent — subscribe to events.
  • useLifecycles — calls mount and unmount callbacks.
  • useMountedState and useUnmountPromise — track if component is mounted.
  • usePromise — resolves promise only while component is mounted.
  • useLogger — logs in console as component goes through life-cycles.
  • useMount — calls mount callbacks.
  • useUnmount — calls unmount callbacks.
  • useUpdateEffect — run an effect only on updates.
  • useIsomorphicLayoutEffect — useLayoutEffect that that works on server.
  • useDeepCompareEffect, useShallowCompareEffect, and useCustomCompareEffect
• State
• Miscellaneous
  • useEnsuredForwardedRef and ensuredForwardRef — use a React.forwardedRef safely.

Usage — how to import.
Unlicense — public domain.
Support — add yourself to backer list below.