sequelize
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.
The long-standing SQL ORM for Node.js.
When to choose it: Mature SQL projects with a large existing community and plenty of examples; less ideal if you need strong static types.
- + Very mature
- + Big community
- + Broad SQL support
- - Weaker TypeScript story
- - Verbose
- Latest version
- 6.37.8
- Monthly downloads
- 12,085,864
- GitHub stars
- 30,349
- Minified + gzip
- 216.3 kB
- Dependencies
- 16
- License
- MIT
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Data from npm, Bundlephobia and GitHub. Last updated 2026-06-02.