XState vs Zustand
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
A JavaScript/TypeScript library for managing app and workflow logic with state machines and actors.
Open source · MIT
A small React state-management library built on hooks, with no providers needed.
The short answer
Choose XState if you need…
- Frontend developers managing complex UI flows with many interacting states
- Teams modeling multi-step workflows or processes in backend code
- Developers who want state logic that can be drawn as a diagram
- Developers using React, Vue, or Svelte who want a state-machine approach
Choose Zustand if you need…
- React developers who want simpler shared state than Redux
- Apps that need state shared across many components without wrapping them in providers
- Projects that need to read or update state outside components via getState and setState
- Developers who want fine control over which state changes trigger re-renders
Side-by-side
| XState | Zustand | |
|---|---|---|
| Type | Library | Library |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 30.4k | 58.9k |
| Setup difficulty | Intermediate | Beginner |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | TypeScript | TypeScript |
| Last code update | 4 days ago | 15 days ago |
What each one is
XState
XState is a library for managing state in JavaScript and TypeScript apps, on the frontend or backend. You describe how your logic moves between states and reacts to events, using state machines, statecharts, and actors, so the behavior is predictable and can be visualized. The README says it has zero dependencies. A smaller companion package, @xstate/store, offers simple event-based state management for cases that don't need full machines.
Zustand
Zustand lets React apps keep shared state in a store that components read through a hook. Components subscribe to just the pieces they select and re-render only when those pieces change. The README says it needs no context providers and has a small API, and it can also be used without React.
Best for
XState
- Frontend developers managing complex UI flows with many interacting states
- Teams modeling multi-step workflows or processes in backend code
- Developers who want state logic that can be drawn as a diagram
- Developers using React, Vue, or Svelte who want a state-machine approach
Zustand
- React developers who want simpler shared state than Redux
- Apps that need state shared across many components without wrapping them in providers
- Projects that need to read or update state outside components via getState and setState
- Developers who want fine control over which state changes trigger re-renders
Strengths
XState
- The README states it has zero dependencies
- Models logic as explicit states and events, which can make behavior easier to reason about
- Has a visual editor (Stately Studio) and a VS Code extension for working with machines
Zustand
- Small, simple API based on hooks, with no providers required
- Components re-render only when the selected state they read changes
- Works with async actions and can be used outside React
Not ideal for
XState
- Simple apps with only a few pieces of state, where a basic store or plain variables are enough, since the concepts add overhead
- Readers new to programming, since it assumes familiarity with JavaScript/TypeScript and state modeling
Zustand
- Teams that require Redux's conventions, tooling, and strict structure, since the README describes zustand as un-opinionated
- Projects not using React or JavaScript, since the README focuses on JavaScript and React usage and the vanilla core is only a secondary option
- Adding state inside React Server Components, which the README explicitly advises against because it can cause bugs and privacy issues
Trade-offs
XState
- Concepts such as statecharts and actors have a learning curve for developers unfamiliar with them
- The README does not detail performance or bundle size, so those should be checked separately
- Overkill for very simple state needs, as the README itself notes with its separate store package
Zustand
- The README says to set state immutably and be careful when replacing state, which takes care to get right
- Some patterns, such as fetching everything or using custom equality, can cause extra re-renders or require extra setup
- Documentation for the migration to v5 and TypeScript usage is referenced but not included in the truncated README
Getting started
Frequently asked questions
What is the difference between XState and Zustand?
XState: A JavaScript/TypeScript library for managing app and workflow logic with state machines and actors. Zustand: A small React state-management library built on hooks, with no providers needed. XState suits frontend developers managing complex ui flows with many interacting states, while Zustand suits react developers who want simpler shared state than redux.
Are XState and Zustand free?
XState: Free and open source. Zustand: Free and open source.
Which is easier to set up, XState or Zustand?
Zustand is easier to get started with (rated beginner); XState is rated intermediate and usually needs more setup.
Is XState or Zustand more popular?
Zustand has more GitHub stars (58.9k) than XState (30.4k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to XState and Zustand?
Other options people compare them with include Redux, UI-Router, Jotai, Valtio, React Flow.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.