Last updated: April 12, 2026
TanStack Query vs SWR — Data Fetching Libraries in 2026
Quick Answer
TanStack Query (React Query) is a comprehensive data fetching library with mutations, infinite queries, and devtools. SWR by Vercel is a lightweight alternative focused on stale-while-revalidate caching. TanStack Query has more features; SWR is simpler and smaller.
TanStack Query vs SWR — Side by Side
| Feature | TanStack Query | SWR |
|---|---|---|
| Bundle Size | ~13KB (min+gzip) | ~4KB (min+gzip) |
| Mutations | Built-in useMutation with optimistic updates | Manual — useSWRMutation or custom |
| DevTools | Official DevTools panel | SWR DevTools (community) |
| Infinite Queries | useInfiniteQuery — pagination built-in | useSWRInfinite |
| Caching | Powerful — query keys, invalidation, prefetching | Stale-while-revalidate, key-based |
| Framework Support | React, Vue, Solid, Svelte, Angular | React only |
| Maintained By | Tanner Linsley (TanStack) | Vercel |
Verdict
Choose TanStack Query for applications with mutations, complex caching needs, or when you want devtools. Choose SWR for simpler read-heavy applications where minimal bundle size matters. Both are production-ready.
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