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tanstack.comLibraries
Handles server-state caching, retries, and refetching so well that a lot of apps end up not needing a global state library at all.
Other products from Libraries
Formerly Framer Motion, spun out on its own — the library that makes React transitions look hand-tuned instead of bolted on.
TypeScript-first schema validation that infers your types straight from the schema, so you stop writing the same shape twice.
The utility belt every JS codebase quietly leans on — unglamorous, but it saves you from reinventing array and object helpers.
Immutable, tree-shakable date functions that dodge the footguns of hand-rolled date math without dragging in Moment.js's weight.