The open source application stack for the web

Headless, type-safe, composable tools for building modern web applications that work naturally for developers and reliably for agents

Start with a prompt

12.7B

Total Downloads

143,645,690

Weekly Downloads

126,093

GitHub Stars

Principles

Why TanStack?

Our libraries are built around real products and the developers shipping them.

Portable core
Framework Agnostic
Our library cores are provider-agnostic and logic-driven, meaning you can use the same logic in React, Vue, Svelte, Solid, and more.
Compile-time contracts
Type-Safe by Design
Built with TypeScript from the ground up, providing incredible autocomplete and safety across your entire data-fetching and state management stack.
params.postIdstring
query.dataProject[]
form.emailField<string>
Real workloads
Production-Grade
Battle-tested in the world's largest apps. We build for scale, handling complex concurrency, caching, and state synchronization with ease.
npm downloads12,721,123,633
per week143,645,690
github stars126,093
Independent tools
No Vendor Lock-in
Open source and independent. We aren't beholden to any single cloud provider or framework team, ensuring the best tools for the community.
license
MIT
hosting
self-host anywhere
governance
community-driven
paid tiers
none

Read our product tenets

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Latest Blog Posts

Inside TanStack Table V9 Reactivity

by Riccardo Perra on Jul 19, 2026

TanStack Table V9 moves state and options behind reactive primitives so updates stay within the scopes that consume them. Here is the path we took to get there.

TanStack Has a New Look

by Tanner Linsley on Jul 15, 2026

TanStack has a new logo, a design system, and a brand that finally looks like actual people care about the details, because we do.

Run Any Coding Agent in a Sandbox, With One chat() Call

by Alem Tuzlak on Jun 30, 2026

Wiring a coding agent into your app means gluing each CLI's protocol and deciding where it safely runs. TanStack AI's new sandbox layer collapses both into one pattern, and lets you plug in any Agent Client Protocol agent with no dedicated package.

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