Sequelize 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! ?? ?? Getting Started 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) ?? 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. ?? ?? Major version changelog Please find upgrade information to major versions here: Upgrade from v5 to v6 Upgrade from v6 to v7 ?? Resources Documentation Databases Compatibility Table Changelog Discussions Slack Stack Overflow ?? Tools CLI For GraphQL For CockroachDB Awesome Sequelize For YugabyteDB ?? Translations English (Official) 中文文? (Unofficial) ?? Responsible disclosure If you have security issues to report, please refer to our Responsible Disclosure Policy for more details.