A CSS parser, transformer, and minifier written in Rust
- Weekly Downloads
- 59.8M
- Bundle (gzip)
- 3.7 KB
- Updated
- Vulns
- 0
Comparison guide
Side-by-side NPM package comparison

Smallest Bundle
Lightningcss
3.7 KB gzipped
Most Popular
Postcss
216.8M weekly downloads
Best Maintained
Postcss
100/100 maintenance score
Highest Quality
Lightningcss
50/100 quality score
Overall Pick
Postcss
Best all-around based on popularity, size, maintenance & quality
A CSS parser, transformer, and minifier written in Rust
Tool for transforming styles with JS plugins
Choosing between Lightningcss and Postcss? 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.
Postcss leads with 216.8M weekly downloads — roughly 3.6x more. Lightningcss has 59.8M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.
Lightningcss has the smallest gzipped bundle at 3.7 KB. Postcss comes in at 60.1 KB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.
Postcss has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Lightningcss has an overall health score of 79/100 (very good), with strong maintenance, security, popularity scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.
Choose Lightningcss if you value massive community and ecosystem, minimal bundle footprint, strong security track record. Choose Postcss if you value massive community and ecosystem, actively maintained, strong security track record.
Both Lightningcss and Postcss are solid choices for JavaScript development. Postcss 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.
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