85
ExcellentSimple, scalable state management.
- Weekly Downloads
- 3.8M
↑9%
- Bundle (gzip)
- 1.2 MB
- Updated
- Vulns
- 0
Health Score Breakdown
Maintenance
100
Popularity
100
Quality
50
Security
100
Stability
70
Comparison guide
Mobx vs Zustand
Side-by-side NPM package comparison
Quick Verdict
Smallest Bundle
Zustand
485.0 B gzipped
Most Popular
Zustand
35.8M weekly downloads
Best Maintained
Mobx
100/100 maintenance score
Highest Quality
Mobx
50/100 quality score
Overall Pick
Zustand
Best all-around based on popularity, size, maintenance & quality
85
Excellent🐻 Bear necessities for state management in React
- Weekly Downloads
- 35.8M
↑10%
- Bundle (gzip)
- 485.0 B
- Updated
- Vulns
- 0
Health Score Breakdown
Maintenance
100
Popularity
100
Quality
50
Security
100
Stability
70
Choosing between Mobx and Zustand? Here's a data-driven comparison based on real npm data — downloads, bundle size, health scores, and more — to help you decide which package fits your project best.
Downloads & Popularity
Zustand leads with 35.8M weekly downloads — roughly 9.5x more. Mobx has 3.8M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.
Bundle Size
Zustand has the smallest gzipped bundle at 485.0 B. Mobx comes in at 1.2 MB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.
Health Score Comparison
Mobx has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Zustand has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.
When to Choose Each
Choose Mobx if you value large community support, actively maintained, strong security track record. Choose Zustand if you value massive community and ecosystem, minimal bundle footprint, actively maintained, strong security track record.
Our Verdict
Both Mobx and Zustand are solid choices for JavaScript development. Mobx has the edge in overall health score (85/100), while each package brings unique strengths to the table. Evaluate them based on your project's priorities — whether that's community size, bundle efficiency, or maintenance activity — and choose the one that aligns best with your requirements.
Frequently Asked Questions
- Is mobx better than zustand?
- It depends on your needs. Mobx has a health score of 85/100 while Zustand scores 85/100. Zustand has more weekly downloads (35.8M), suggesting broader adoption. Consider your specific requirements — bundle size, community support, and feature set — to decide which is the better fit.
- Which has a smaller bundle size, mobx or zustand?
- Zustand has the smaller gzipped bundle at 485.0 B. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
- How many developers use mobx vs zustand?
- Based on npm download statistics, Mobx has approximately 3.8M weekly downloads and Zustand has approximately 35.8M weekly downloads. These numbers reflect package installations, not unique developers, but they indicate relative adoption levels.
- Which is better maintained, mobx or zustand?
- Mobx currently has the higher overall health score at 85/100. Mobx has a maintenance score of 100/100 and Zustand scores 100/100 on maintenance.
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The 2026 JavaScript Stack Cheatsheet
One PDF: the best package for every category (ORMs, bundlers, auth, testing, state management). Used by 500+ devs. Free, updated monthly.