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Jasmine vs Jest

Side-by-side NPM package comparison

Quick Verdict

Smallest Bundle

Jest

1.9 KB gzipped

Most Popular

Jest

42.1M weekly downloads

Best Maintained

Jasmine

100/100 maintenance score

Highest Quality

Jest

80/100 quality score

Overall Pick

Jest

Best all-around based on popularity, size, maintenance & quality

jasmine icon

jasmine

Very Popular

Version 6.2.0

0
85
Excellent

CLI for Jasmine, a simple JavaScript testing framework for browsers and Node

Weekly Downloads
1.3M
↓12%
Bundle (gzip)
22.1 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
100
Popularity
100
Quality
50
Security
100
Stability
70
jest icon

jest

Extremely Popular

Version 30.3.0

0
86
Excellent

Delightful JavaScript Testing.

Weekly Downloads
42.1M
↓5%
Bundle (gzip)
1.9 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
80
Popularity
100
Quality
80
Security
100
Stability
70

Choosing between Jasmine and Jest? 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

Jest leads with 42.1M weekly downloads — roughly 31.6x more. Jasmine has 1.3M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.

Bundle Size

Jest has the smallest gzipped bundle at 1.9 KB. Jasmine comes in at 22.1 KB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.

Health Score Comparison

Jest has an overall health score of 86/100 (very good), with strong maintenance, quality, security, popularity scores. Jasmine 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 Jasmine if you value large community support, actively maintained, strong security track record. Choose Jest if you value massive community and ecosystem, minimal bundle footprint, strong security track record.

Our Verdict

Both Jasmine and Jest are solid choices for JavaScript development. Jest has the edge in overall health score (86/100), 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 jasmine better than jest?
It depends on your needs. Jasmine has a health score of 85/100 while Jest scores 86/100. Jest has more weekly downloads (42.1M), 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, jasmine or jest?
Jest has the smaller gzipped bundle at 1.9 KB. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
How many developers use jasmine vs jest?
Based on npm download statistics, Jasmine has approximately 1.3M weekly downloads and Jest has approximately 42.1M weekly downloads. These numbers reflect package installations, not unique developers, but they indicate relative adoption levels.
Which is better maintained, jasmine or jest?
Jest currently has the higher overall health score at 86/100. Jasmine has a maintenance score of 100/100 and Jest scores 80/100 on maintenance.

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