Redux Toolkit vs Zustand vs Overwatch: Who Wins the Performance Benchmark?


The Big State Management Showdown
Hey React devs, if you’re building React apps, chances are you’ve either used Redux or Zustand for state management. These have ruled for a while, but a new contender is here to shake things up! Let’s dive into an exciting performance showdown that could change your dev toolkit! 🕵️♂️
The Players: Veterans and a Bold Newcomer
Redux Toolkit: The seasoned pro of React state management. It’s been around forever, super dependable with a solid ecosystem. But yeah, it can get a bit out of hand, and performance can be a concern as your app grows.
Zustand: The cool, modern pick with a simple API, direct tweaks, and an easy start. Its small size and vibe win fans, but can it keep up under pressure?
Overwatch TS: The Rookie Stealing the Spotlight! A lightweight, hooks-based solution for React and Next.js, made to deliver performance and effortless state management.
Everyone claims “Fast,” so we put these tools to a real test!
The Benchmark: How We Pushed the Limits!
We set up a benchmark to mimic real-world action:
10,000 concurrent state updates to stress-test update cycles.
Cold start checks to see the startup overhead.
Memory usage tracking to spot any resource hogs.
100 runs for solid, fair averages, all on the same machine.
The latest versions and recommended practices of all three libraries.
This wasn’t just a quick sprint, it was a full-on challenge designed to expose every strength and flaw! ⚡
The Results — Totally Unexpected!
I figured we’d see a small 5–10% edge, but 😮 the numbers blew me away!
Overwatch: Average update time: 49.74 ms
Zustand: Average update time: 584.74 ms
Redux Toolkit: Average update time: 913.03 ms
Overwatch Ts Vs Redux Toolkit Vs Zustand Benchmark
In plain terms:
✨ Overwatch TS is ~11.7× faster than Zustand (91% faster)!
✨ Overwatch TS is ~18.3× faster than Redux Toolkit (95% faster)!
We checked these stats multiple times, yep, they’re legit!
What We Tested: More Than Just Speed
We didn’t stop at update times, we went all in:
Update Cycle Time: How fast can 10,000 states update together?
Cold Start Time: How much lag at the start?
Memory Delta: Does it chew up memory during updates or memory leaks?
Fastest vs. Latest Updates: Consistency across runs.
Get Involved: You’re Part of This!
Don’t just trust us, dive in and see for yourself!
Live Benchmark Playground: Test Redux, Zustand, and Overwatch TS live on your machine. Benchmark
Open-Source Code: Peek at the benchmark setup or run your tests. GitHub
Our Test Runs: Performance runs JSON
We’re all about transparency — feel free to fork, tweak, and join in! 🤝
Why Is Overwatch TS So Performant?
Zustand and Redux nail it with their polished strategies, but Overwatch TS takes a different route to win. As an Overwatch developer, I think it steps away from the Flux Architecture (like Zustand and Redux) and adopts a modern, singleton Publisher-Subscriber pattern. Its simplicity is key, and there’s more to its performance boost!
Using microtask-based batching to combine multiple state updates in the same tick, reducing re-render cycles.
Employing immutability safely and efficiently, skipping heavy proxies where not needed.
Performing fine-grained subscriptions so only the components that need updates are re-rendered.
Removing boilerplate without sacrificing control.
This means your React apps stay snappy, even with complex states and heavy interactions. ✨
Help Build the Sensible!
We’re moving past bulky, store-heavy state management. Today’s apps are all about components, async flows, and dynamic UIs, and Overwatch TS fits right in!
Contribute: GitHub
Learn More: Documentation
🤝 Your Take!
This isn’t just a tool, it’s a chance to rethink state management! Share your thoughts in the comments or reach out to boost your app’s performance. Let’s build something awesome for React together!
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Written by

Karandeep Singh
Karandeep Singh
Always on Builder Mode type of software developer, sharing my interesting findings in the hope that they will be helpful for you to level up on your coding journey.