Sequelize is an easy-to-use and promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, DB2, Microsoft SQL Server, Snowflake, Oracle DB and Db2 for IBM i. It features solid transaction support, relations, eager and lazy loading, read replication and more.

Would you like to contribute? Read our contribution guidelines to know more. There are many ways to help! 😃

Ready to start using Sequelize? Head to sequelize.org to begin!

• Our Getting Started guide for Sequelize 6 (stable)
• Our Getting Started guide for Sequelize 7 (alpha)

Do you like Sequelize and would like to give back to the engineering team behind it?

We have recently created an OpenCollective based money pool which is shared amongst all core maintainers based on their contributions. Every support is wholeheartedly welcome. ❤️

Please find upgrade information to major versions here:

• Upgrade from v5 to v6
• Upgrade from v6 to v7

• Documentation
• Databases Compatibility Table
• Changelog
• Discussions
• Slack
• Stack Overflow

• CLI
• With TypeScript
• Enhanced TypeScript with decorators
• For GraphQL
• For CockroachDB
• Awesome Sequelize
• For YugabyteDB

• English (Official)
• 中文文档 (Unofficial)

If you have security issues to report, please refer to our Responsible Disclosure Policy for more details.