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Autoprefixer vs Lightningcss

Side-by-side NPM package comparison

Quick Verdict

Smallest Bundle

Lightningcss

3.7 KB gzipped

Most Popular

Autoprefixer

50.8M weekly downloads

Best Maintained

Autoprefixer

80/100 maintenance score

Highest Quality

Autoprefixer

50/100 quality score

Overall Pick

Lightningcss

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

autoprefixer icon

autoprefixer

Extremely Popular

Version 10.4.27

0
79
Good

Parse CSS and add vendor prefixes to CSS rules using values from the Can I Use website

Weekly Downloads
50.8M
25%
Bundle (gzip)
58.3 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
80
Popularity
100
Quality
50
Security
100
Stability
70
lightningcss icon

lightningcss

Extremely Popular

Version 1.32.0

0
79
Good

A CSS parser, transformer, and minifier written in Rust

Weekly Downloads
49.5M
49%
Bundle (gzip)
3.7 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
80
Popularity
100
Quality
50
Security
100
Stability
70

Choosing between Autoprefixer and Lightningcss? 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

Autoprefixer leads with 50.8M weekly downloads — roughly 1.0x more. Lightningcss has 49.5M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.

Bundle Size

Lightningcss has the smallest gzipped bundle at 3.7 KB. Autoprefixer comes in at 58.3 KB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.

Health Score Comparison

Autoprefixer has an overall health score of 79/100 (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.

When to Choose Each

Choose Autoprefixer if you value massive community and ecosystem, strong security track record. Choose Lightningcss if you value massive community and ecosystem, minimal bundle footprint, strong security track record.

Our Verdict

Both Autoprefixer and Lightningcss are solid choices for JavaScript development. Autoprefixer has the edge in overall health score (79/100), 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 autoprefixer better than lightningcss?
It depends on your needs. Autoprefixer has a health score of 79/100 while Lightningcss scores 79/100. Autoprefixer has more weekly downloads (50.8M), 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, autoprefixer or lightningcss?
Lightningcss has the smaller gzipped bundle at 3.7 KB. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
How many developers use autoprefixer vs lightningcss?
Based on npm download statistics, Autoprefixer has approximately 50.8M weekly downloads and Lightningcss has approximately 49.5M weekly downloads. These numbers reflect package installations, not unique developers, but they indicate relative adoption levels.
Which is better maintained, autoprefixer or lightningcss?
Autoprefixer currently has the higher overall health score at 79/100. Autoprefixer has a maintenance score of 80/100 and Lightningcss scores 80/100 on maintenance.

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