Glossary · Web & App Development
Zustand
Overview
What Zustand is
Zustand is a state-management library for React that holds state shared across many components — things like the signed-in user, a shopping cart, or UI settings. You create a store with a single `create` function and read from it with a hook. There is no provider to wrap your app in and very little setup, which is why it is often described as minimal.
How it works
Components subscribe only to the specific slices of state they use, so unrelated updates don't cause unnecessary re-renders — a key reason Zustand performs well. Optional middleware covers common needs: `persist` saves state to local storage, `immer` simplifies immutable updates, and `devtools` connects to the Redux DevTools for inspection. The whole library is only about a kilobyte.
Why it matters for your project
Zustand lets a team add shared state quickly without the ceremony heavier libraries require, which keeps small and mid-size apps simple. In frontend, React, and React Native development, it is a pragmatic default when you need shared state but not a full framework, helping ship features faster while keeping the codebase easy to read and maintain.
Where we use it
Related Zen in Tech services
How our team puts Zustand to work in real projects.
FAQ
Zustand — common questions
Zustand vs Redux?
Zustand is far smaller with almost no boilerplate, making it faster to adopt for most apps. Redux Toolkit offers stricter structure, a large ecosystem, and powerful devtools that larger teams sometimes prefer.
Is Zustand good for large apps?
Yes. Its simple API scales well, and middleware for persistence, Immer, and devtools covers most complex needs, though very large teams may still choose Redux for its stronger conventions.
Is Zustand free?
Yes. Zustand is free and open source under the MIT license.
Need Zustand done right?
Book a free consultation and we’ll map the fastest, most cost-effective path for your project.
Knowledge hub
From our knowledge hub
All articles →How to Reduce AI Voice Agent Latency
How to cut AI voice agent latency to sub-second, human-like turn-taking: where lag comes from (STT, LLM, TTS, network) and the fixes that actually work.
Read · 7 min →AI AutomationAutomating Lead Follow-Up and Onboarding for Coaches and Agencies
Follow-up automation for coaches and agencies: respond to leads in minutes, qualify prospects before calls, and automate onboarding so you focus on clients.
Read · 6 min →Web DevelopmentThe Auto Repair & Dealership Website That Books More Jobs
Auto repair and dealership websites that convert: online booking, fast mobile pages, reviews, and service pages that turn visitors into booked jobs.
Read · 4 min →