Side-by-side NPM package comparison
Version 6.37.7
Sequelize is a promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, Microsoft SQL Server, Amazon Redshift and Snowflake’s Data Cloud. It features solid transaction support, relations, eager and lazy loading, read replication and more.
Version 0.3.28
Data-Mapper ORM for TypeScript and ES2021+. Supports MySQL/MariaDB, PostgreSQL, MS SQL Server, Oracle, SAP HANA, SQLite, MongoDB databases.
Choosing between Sequelize and Typeorm? 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.
Typeorm leads with 3.5M weekly downloads — roughly 1.4x more. Sequelize has 2.5M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.
Typeorm has the smallest gzipped bundle at 149.6 KB. Sequelize comes in at 323.3 KB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.
Typeorm has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Sequelize has an overall health score of 73/100 (good), with strong security, popularity scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.
Choose Sequelize if you value large community support, strong security track record. Choose Typeorm if you value large community support, actively maintained, strong security track record.
Both Sequelize and Typeorm are solid choices for JavaScript development. Typeorm 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.