Sequelize

sequelize.org

Feature-rich ORM for modern TypeScript & JavaScript

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Sequelize screenshot
/ About /

Sequelize is a mature, open-source ORM for Node.js and TypeScript that supports multiple SQL databases including PostgreSQL, MySQL, MariaDB, SQLite, and SQL Server. It provides a rich feature set including model definitions, associations, transactions, eager/lazy loading, and soft deletion. Developers interact with their database through a JavaScript/TypeScript API rather than writing raw SQL.

/ How it works /

Developers define models and associations in TypeScript or JavaScript, and Sequelize translates these into database queries and handles schema synchronization automatically.

/ Who it's for /

JavaScript and TypeScript developers building Node.js applications with relational databases

/ More info /

Background.

Status
launched
Business model
open-source
/ Discovered patterns /

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