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High-quality open-source software for web developers.

Headless, type-safe, & powerful utilities for Web Applications, Routing, State Management, Data Visualization, Datagrids/Tables, and more.

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Open Source Libraries

Data & State Management

Full-stack Framework powered by TanStack Router for React and Solid

Full-document SSR, Streaming, Server Functions, bundling and more, powered by TanStack Router and Vite - Ready to deploy to your favorite hosting provider.

Full-document SSR, Streaming, Server Functions, bundling and more, powered by TanStack Router and Vite - Ready to deploy to your favorite hosting provider.

Click to learn more

Type-safe Routing for React and Solid applications

A powerful React router for client-side and full-stack react applications. Fully type-safe APIs, first-class search-params for managing state in the URL and seamless integration with the existing React ecosystem.

A powerful React router for client-side and full-stack react applications. Fully type-safe APIs, first-class search-params for managing state in the URL and seamless integration with the existing React ecosystem.

Click to learn more

Powerful asynchronous state management, server-state utilities and data fetching

Powerful asynchronous state management, server-state utilities and data fetching. Fetch, cache, update, and wrangle all forms of async data in your TS/JS, React, Vue, Solid, Svelte & Angular applications all without touching any "global state"

Powerful asynchronous state management, server-state utilities and data fetching. Fetch, cache, update, and wrangle all forms of async data in your TS/JS, React, Vue, Solid, Svelte & Angular applications all without touching any "global state"

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The reactive client-first store for your API

TanStack DB gives you a reactive, client-first store for your API data with collections, live queries and optimistic mutations that keep your UI reactive, consistent and blazing fast 🔥

TanStack DB gives you a reactive, client-first store for your API data with collections, live queries and optimistic mutations that keep your UI reactive, consistent and blazing fast 🔥

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Framework agnostic data store with reactive framework adapters

The immutable-reactive data store that powers the core of TanStack libraries and their framework adapters.

The immutable-reactive data store that powers the core of TanStack libraries and their framework adapters.

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A powerful, open-source AI SDK with a unified interface across multiple providers

A powerful, open-source AI SDK with a unified interface across multiple providers. No vendor lock-in, no proprietary formats, just clean TypeScript and honest open source.

A powerful, open-source AI SDK with a unified interface across multiple providers. No vendor lock-in, no proprietary formats, just clean TypeScript and honest open source.

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UI & UX

Headless UI for building powerful tables & datagrids

Supercharge your tables or build a datagrid from scratch for TS/JS, React, Vue, Solid, Svelte, Qwik, Angular, and Lit while retaining 100% control over markup and styles.

Supercharge your tables or build a datagrid from scratch for TS/JS, React, Vue, Solid, Svelte, Qwik, Angular, and Lit while retaining 100% control over markup and styles.

Click to learn more

Headless UI for building performant and type-safe forms

Headless, performant, and type-safe form state management for TS/JS, React, Vue, Angular, Solid, Lit and Svelte.

Headless, performant, and type-safe form state management for TS/JS, React, Vue, Angular, Solid, Lit and Svelte.

Click to learn more

TanStackHotkeys

Type-safe keyboard shortcuts, sequences, and key state tracking for your apps

A type-safe, cross-platform hotkey library with sequence detection, key state tracking, hotkey recording, and framework adapters for React and more.

A type-safe, cross-platform hotkey library with sequence detection, key state tracking, hotkey recording, and framework adapters for React and more.

Click to learn more

Performance

TanStackVirtual

Headless UI for Virtualizing Large Element Lists

Virtualize only the visible content for massive scrollable DOM nodes at 60FPS in TS/JS, React, Vue, Solid, Svelte, Lit & Angular while retaining 100% control over markup and styles.

Virtualize only the visible content for massive scrollable DOM nodes at 60FPS in TS/JS, React, Vue, Solid, Svelte, Lit & Angular while retaining 100% control over markup and styles.

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Framework agnostic debouncing, throttling, rate limiting, queuing, and batching utilities

Optimize your application's performance with TanStack Pacer's core primitives: Debouncing, Throttling, Rate Limiting, Queuing, and Batching.

Optimize your application's performance with TanStack Pacer's core primitives: Debouncing, Throttling, Rate Limiting, Queuing, and Batching.

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Tooling

TanStackDevtools

Centralized devtools panel for TanStack libraries and other custom devtools

A unified devtools panel that houses all TanStack devtools and allows you to create and integrate your own custom devtools.

A unified devtools panel that houses all TanStack devtools and allows you to create and integrate your own custom devtools.

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Configuration and tools for publishing and maintaining high-quality JavaScript packages

Opinionated tooling to lint, build, test, version, and publish JS/TS packages — minimal config, consistent results.

Opinionated tooling to lint, build, test, version, and publish JS/TS packages — minimal config, consistent results.

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CLI, MCP server, and AI toolkit for TanStack

A CLI, MCP server, and AI toolkit for TanStack. Create and customize TanStack Start apps, search docs, integrate with AI agents, and more.

A CLI, MCP server, and AI toolkit for TanStack. Create and customize TanStack Start apps, search docs, integrate with AI agents, and more.

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Ship Agent Skills with Your npm Packages

Generate, validate, and ship Agent Skills alongside your library — versioned knowledge that agents discover automatically from node_modules. Skills live in each library's repo and update when the package updates.

Generate, validate, and ship Agent Skills alongside your library — versioned knowledge that agents discover automatically from node_modules. Skills live in each library's repo and update when the package updates.

Click to learn more

Why TanStack?

Our libraries are built on principles that put developers first

Framework Agnostic

Every library starts with a provider-agnostic core. Use React, Vue, Solid, Angular, or vanilla JS—your choice.

Type-Safe by Design

First-class TypeScript support that catches bugs at compile time and makes refactoring fearless.

Production-Grade

Battle-tested in the world's largest apps. Built for real workloads, not just happy-path demos.

No Vendor Lock-in

Open source and independent. No hidden agendas, no platform bias—just great tools for developers.

Read our product tenets

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Latest Blog Posts

Introducing TanStack Intent: Ship Agent Skills with Your npm Packages

by Sarah Gerrard and Kyle Mathews on Mar 4, 2026

Your docs are good. Your types are solid. Your agent still gets it wrong. Not because it's dumb — because nothing connects what you know about your tool to what agents know. Docs target humans who bro...

TanStack AI: Why We Split the Adapters

by Alem Tuzlak on Jan 2, 2026

With the latest release we brought a major architectural change to how we do adapters. Instead of one monolithic adapter that does everything, we split into smaller adapters. Each in charge of a singl...

The ai() Function That Almost Was

by Alem Tuzlak on Dec 26, 2025

We spent eight days building an API we had to kill. Here's what happened. The Dream One function to rule them all. One function to control all adapters. One function to make it all typesafe. ts import...

Courses

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Core Maintainers

ArchitectureCore APIDocumentation

Tanner Linsley

🌴 Start 🌴 Router

Core APITypeScriptDocumentation

Dominik Dorfmeister

ReactSolidVueAngular

FormsValidationState Management

Corbin Crutchley

🌴 Form 🌴 Store

ArchitectureCore APIDocumentation

Manuel Schiller

🌴 Start 🌴 Router

ReactPreactSolid

TablesData GridsDashboards

Kevin Van Cott

🌴 Pacer 🌴 Hotkeys

Jack Herrington

🌴 AICreate TS Router App

ArchitectureCore APIDocumentation

Sean Cassiere

🌴 Start 🌴 Router

Chris Horobin

🌴 Start 🌴 Router

VirtualizationPerformance

Damian Pieczynski

Kyle Mathews

Lachlan Collins

🌴 Config 🌴 Query

Sync EnginesIncremental View Maintenance

Sam Willis

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