sequelize is a powerful ORM (Object-Relational Mapping) library for Node.js that provides an easy-to-use interface for interacting with SQL databases. It supports a variety of database systems such as MySQL, PostgreSQL, SQLite, and MSSQL, making it a versatile choice for database management in Node.js applications. Sequelize simplifies database operations by allowing developers to work with database tables and records using JavaScript objects and methods.

Here are some alternatives to Sequelize:

• bookshelf is an ORM for Node.js that builds on top of the Knex query builder. It provides a simple and flexible way to interact with databases, focusing on simplicity and ease of use.
• knex is a SQL query builder for Node.js that supports multiple database systems. While not a full ORM like Sequelize, Knex provides a powerful tool for building and executing SQL queries in a programmatic way.
• mongoose is an ORM for MongoDB that is specifically designed for working with MongoDB databases. It offers schema-based modeling and validation, making it a popular choice for Node.js applications using MongoDB.
• typeorm is an ORM for TypeScript and JavaScript that supports multiple database systems. It provides a rich set of features for database operations, including entity modeling, query building, and migrations.

For a detailed comparison of these ORM libraries, check out: Comparing bookshelf vs knex vs mongoose vs sequelize vs typeorm.

Sequelize

Sequelize is an easy-to-use and promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, DB2, Microsoft SQL Server, and Snowflake. 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! 😃

:computer: Getting Started

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

• Our Getting Started guide for Sequelize 6 (stable)

:money_with_wings: Supporting the project

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. ❤️

:pencil: Major version changelog

Please find upgrade information to major versions here:

• Upgrade from v5 to v6

:book: Resources

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

:wrench: Tools

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

:speech_balloon: Translations

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

:warning: Responsible disclosure

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