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%40sveltejs vs Astro vs Kit vs Next

Side-by-side NPM package comparison

astro

Very Popular

Version 6.0.5

85
Excellent

Astro is a modern site builder with web best practices, performance, and DX front-of-mind.

Weekly Downloads
1.4M
↑13%
Bundle (gzip)
761.5 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
100
Popularity
100
Quality
50
Security
100
Stability
70

kit

Niche

Version 2.0.31

68
Good

A lightweight TypeScript utility library with Russian pluralization, object/array flattening, and utility types

Weekly Downloads
1.2K
↑82%
Bundle (gzip)
49.9 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
60
Popularity
40
Quality
80
Security
100
Stability
70

next

Extremely Popular

Version 16.1.7

85
Excellent

The React Framework

Weekly Downloads
25.3M
↑4%
Bundle (gzip)
40.5 MB
Updated
Vulns
0

Health Score Breakdown

Maintenance
100
Popularity
100
Quality
50
Security
100
Stability
70

Choosing between Astro and Kit and Next? 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

Next leads with 25.3M weekly downloads — roughly 18.2x more. Astro has 1.4M weekly downloads. Kit has 1.2K weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.

Bundle Size

Kit has the smallest gzipped bundle at 49.9 KB. Astro comes in at 761.5 KB. Next comes in at 40.5 MB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.

Health Score Comparison

Astro has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Next has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Kit has an overall health score of 68/100 (good), with strong quality, security scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.

When to Choose Each

Choose Astro if you value large community support, actively maintained, strong security track record. Choose Kit if you value strong security track record. Choose Next if you value massive community and ecosystem, actively maintained, strong security track record.

Our Verdict

Both Astro and Kit and Next are solid choices for JavaScript development. Astro 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 astro better than kit?
It depends on your needs. Astro has a health score of 85/100 while Kit scores 68/100. Astro has more weekly downloads (1.4M), 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, astro or kit?
Kit has the smaller gzipped bundle at 49.9 KB. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
How many developers use astro vs kit?
Based on npm download statistics, Astro has approximately 1.4M weekly downloads and Kit has approximately 1.2K weekly downloads. These numbers reflect package installations, not unique developers, but they indicate relative adoption levels.
Which is better maintained, astro or kit?
Astro currently has the higher overall health score at 85/100. Astro has a maintenance score of 100/100 and Kit scores 60/100 on maintenance.

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