Side-by-side NPM package comparison
Version 2.16.4
Blazing fast, zero configuration web application bundler
Version 4.59.0
Next-generation ES module bundler
Choosing between Parcel and Rollup? 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.
Rollup leads with 83.4M weekly downloads — roughly 296.4x more. Parcel has 281.2K weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.
Parcel has the smallest gzipped bundle at 12.9 KB. Rollup comes in at 53.4 KB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.
Rollup has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Parcel has an overall health score of 81/100 (very good), with strong maintenance, security, popularity scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.
Choose Parcel if you value actively maintained, strong security track record. Choose Rollup if you value massive community and ecosystem, actively maintained, strong security track record.
Both Parcel and Rollup are solid choices for JavaScript development. Rollup 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.