statelyai/xstate

Health v2 · maintenance only

Adoption not part of the score

30061 stars · 1385 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

XState is a zero-dependency JavaScript/TypeScript library for state management and orchestration using state machines, statecharts, and the actor model. It lets developers model complex application and workflow logic in a predictable, testable, and visual way, integrating with React, Vue, Svelte, and other frameworks.

Use cases

• manage complex frontend application state with state machines
• model multi-step workflows and background job orchestration
• replace Redux or Zustand with event-based state management
• prevent impossible states in UI logic
• visually design statecharts and export code
• implement actor-based concurrent logic in JavaScript

When to choose

• your app logic has complex, interdependent states and transitions
• you need deterministic, easily testable state behavior
• you want visual modeling tools (Stately Studio, VS Code extension) alongside code
• you need both simple stores and full statechart orchestration in one ecosystem

When to avoid

• you only need trivial local component state
• your team is unfamiliar with statecharts and the learning overhead isn't justified
• you need a minimal store under 1kb without machine semantics (consider @xstate/store instead)

Facets

library · maturity active

state-management workflow-automation concurrency web-development frontend backend developer-tools cross-platform state-machine statechart actor-model fsm event-driven orchestration scxml react vue svelte visual-editor automation nodejs web-server javascript typescript

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