Suggest an editImprove this articleRefine the answer for “Client state VS server state”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)**Server state** is data that physically lives on a remote server and can change without you knowing, while **UI state** is data that belongs only to the client (whether a menu is open, a form field's value, and so on). **Key point:** because server state requires asynchronous requests, caching, and can go stale, it is best managed separately from UI state, with specialized tools like TanStack Query rather than plain `useState`/Redux.Shown above the full answer for quick recall.Answer (EN)ImageDetailed explanation - [https://tanstack.com/query/latest/docs/framework/react/overview](https://tanstack.com/query/latest/docs/framework/react/overview)For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.