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Comparison guide

@sveltejs/kit vs Astro vs Next

Side-by-side NPM package comparison

Quick Verdict

Smallest Bundle

@sveltejs/kit

1.4 KB gzipped

Most Popular

Next

41.1M weekly downloads

Best Maintained

@sveltejs/kit

100/100 maintenance score

Highest Quality

@sveltejs/kit

50/100 quality score

Overall Pick

Next

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

  1. @sveltejs/kit

    SvelteKit is the fastest way to build Svelte apps

    2.0M weekly downloads · 1.4 KB gzip · Health 85/100

    0
  2. astro

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

    4.8M weekly downloads · 1018.8 KB gzip · Health 85/100

    0
  3. next

    The React Framework

    41.1M weekly downloads · 55.1 MB gzip · Health 85/100

    0

Choosing between @sveltejs/kit and Astro 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 41.1M weekly downloads — roughly 8.6x more. Astro has 4.8M weekly downloads. @sveltejs/kit has 2.0M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.

Bundle Size

@sveltejs/kit has the smallest gzipped bundle at 1.4 KB. Astro comes in at 1018.8 KB. Next comes in at 55.1 MB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.

Health Score Comparison

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

When to Choose Each

Choose @sveltejs/kit if you value large community support, minimal bundle footprint, actively maintained, strong security track record. Choose Astro if you value large community support, actively maintained, strong security track record. Choose Next if you value massive community and ecosystem, actively maintained, strong security track record.

Our Verdict

Both @sveltejs/kit and Astro and Next are solid choices for JavaScript development. @sveltejs/kit 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 @sveltejs/kit better than astro?
It depends on your needs. @sveltejs/kit has a health score of 85/100 while Astro scores 85/100. Astro has more recorded weekly downloads (4.8M). Consider your specific requirements — bundle size, community support, and feature set — to decide which is the better fit.
Which has a smaller bundle size, @sveltejs/kit or astro?
@sveltejs/kit has the smaller gzipped bundle at 1.4 KB. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
How many developers use @sveltejs/kit vs astro?
Astro has more recorded weekly downloads (4.8M). Download counts reflect package installations, not unique developers.
Which is better maintained, @sveltejs/kit or astro?
@sveltejs/kit has a maintenance score of 100/100. @sveltejs/kit scores 100/100 and Astro scores 100/100 on maintenance.

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