Sequelize is an easy-to-use and promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, DB2 and Microsoft SQL Server. It features solid transaction support, relations, eager and lazy loading, read replication and more.
Sequelize follows Semantic Versioning and the official Node.js LTS schedule. Version 7 of Sequelize officially supports the Node.js versions
^16.0.0. Other version might be working as well.
Would you like to contribute? Read our contribution guidelines to know more. There are many ways to help!
📝 Major version changelog
Please find upgrade information to major versions here:
💸 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.
# using npm npm i sequelize # This will install latest version of Sequelize # using yarn yarn add sequelize
# Libraries used for supported dialects are : # using npm npm i pg pg-hstore # PostgreSQL npm i mysql2 # MySQL npm i mariadb # MariaDB npm i sqlite3 # SQLite npm i tedious # Microsoft SQL Server npm i ibm_db # DB2 # using yarn yarn add pg pg-hstore # PostgreSQL yarn add mysql2 # MySQL yarn add mariadb # MariaDB yarn add sqlite3 # SQLite yarn add tedious # Microsoft SQL Server yarn add ibm_db # DB2
⚠️ Responsible disclosure
If you have security issues to report, please refer to our Responsible Disclosure Policy for more details.
- With TypeScript
- Enhanced TypeScript with decorators
- For GraphQL
- For CockroachDB
- For YugabyteDB