Side-by-side NPM package comparison
Version 8.0.1
Easy as cake e-mail sending from your Node.js applications
Version 4.0.7
Official Node.js client library for the Postmark HTTP API - https://www.postmarkapp.com
Choosing between Nodemailer and Postmark? 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.
Nodemailer leads with 10.4M weekly downloads — roughly 17.2x more. Postmark has 606.0K weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.
Postmark has the smallest gzipped bundle at 21.1 KB. Nodemailer comes in at 57.7 KB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.
Nodemailer has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Postmark has an overall health score of 83/100 (very good), with strong maintenance, security, popularity scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.
Choose Nodemailer if you value massive community and ecosystem, actively maintained, strong security track record. Choose Postmark if you value actively maintained, strong security track record.
Both Nodemailer and Postmark are solid choices for JavaScript development. Nodemailer 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.