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Sequelize vs Typeorm

Side-by-side NPM package comparison

Quick Verdict

Smallest Bundle

Sequelize

216.3 KB gzipped

Most Popular

Typeorm

3.8M weekly downloads

Best Maintained

Sequelize

100/100 maintenance score

Highest Quality

Sequelize

50/100 quality score

Overall Pick

Sequelize

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

sequelize icon

sequelize

Very Popular

Version 6.37.8

0
85
Excellent

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.

Weekly Downloads
2.5M
↑11%
Bundle (gzip)
216.3 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
100
Popularity
100
Quality
50
Security
100
Stability
70
typeorm icon

typeorm

Very Popular

Version 0.3.28

0
85
Excellent

Data-Mapper ORM for TypeScript and ES2021+. Supports MySQL/MariaDB, PostgreSQL, MS SQL Server, Oracle, SAP HANA, SQLite, MongoDB databases.

Weekly Downloads
3.8M
↑18%
Bundle (gzip)
5.9 MB
Updated
Vulns
0

Health Score Breakdown

Maintenance
100
Popularity
100
Quality
50
Security
100
Stability
70

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.

Downloads & Popularity

Typeorm leads with 3.8M weekly downloads — roughly 1.5x more. Sequelize has 2.5M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.

Bundle Size

Sequelize has the smallest gzipped bundle at 216.3 KB. Typeorm comes in at 5.9 MB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.

Health Score Comparison

Sequelize has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Typeorm has an overall health score of 85/100 (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 Sequelize if you value large community support, actively maintained, strong security track record. Choose Typeorm if you value large community support, actively maintained, strong security track record.

Our Verdict

Both Sequelize and Typeorm are solid choices for JavaScript development. Sequelize 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.

Frequently Asked Questions

Is sequelize better than typeorm?
It depends on your needs. Sequelize has a health score of 85/100 while Typeorm scores 85/100. Typeorm has more weekly downloads (3.8M), 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, sequelize or typeorm?
Sequelize has the smaller gzipped bundle at 216.3 KB. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
How many developers use sequelize vs typeorm?
Based on npm download statistics, Sequelize has approximately 2.5M weekly downloads and Typeorm has approximately 3.8M weekly downloads. These numbers reflect package installations, not unique developers, but they indicate relative adoption levels.
Which is better maintained, sequelize or typeorm?
Sequelize currently has the higher overall health score at 85/100. Sequelize has a maintenance score of 100/100 and Typeorm scores 100/100 on maintenance.

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One PDF: the best package for every category (ORMs, bundlers, auth, testing, state management). Used by 500+ devs. Free, updated monthly.