Which is Better Node.js ORM Libraries?
sequelize vs typeorm

Node.js ORM, or Object-Relational Mapping, is a programming technique that simplifies database interaction in Node.js applications. It enables developers to work with databases using JavaScript or TypeScript objects instead of raw SQL queries. This approach abstracts the complexities of database operations, allowing for a more object-oriented coding style. With features like cross-database compatibility, schema management, query building, and middleware support, Node.js ORM libraries, such as Mongoose, Prisma, Knex, Sequelize, TypeORM, Objection, Bookshelf, and Waterline, provide a convenient and consistent way to model, query, and manage data in various database systems, catering to different project needs and preferences in the Node.js ecosystem.

Package	Weekly Downloads	Github Stars	Open Issues	Last Commit	License

sequelize	1,990,418	29,014	861	a day ago	MIT License
typeorm	1,614,556	33,229	2,360	a day ago	MIT License

Featuressequelizetypeorm
 
 
 
SizeSequelize has a moderate footprint, providing a comprehensive ORM for relational databases.
TypeORM is feature-rich, supporting various databases, resulting in a larger footprint.
ConsistencySequelize offers consistent and structured data modeling for relational databases.
TypeORM enforces a consistent schema for a wide range of databases, promoting data integrity.
MutabilitySequelize supports dynamic migrations, facilitating schema changes in relational databases.
TypeORM allows for easy schema modifications, accommodating changing business needs.
LocalizationSequelize lacks built-in support for localization but can be extended using custom code.
TypeORM does not include native localization support but can be extended using custom implementations.
ExtensibilitySequelize is extensible, supporting custom hooks, plugins, and query customization.
TypeORM is extensible, allowing the creation of custom repositories, listeners, and query builders.
MaintenanceSequelize is well-maintained, with frequent updates and a strong community.
TypeORM is actively maintained, with a dedicated team and a supportive community.
PopularSequelize is a popular choice for developers working with relational databases in Node.js.
TypeORM is popular for its extensive feature set and support for various databases.
Learning CurveSequelize has a moderate learning curve, particularly for those new to relational databases.
TypeORM has a moderate learning curve, but its feature set may require more exploration.
EcosystemSequelize benefits from a strong ecosystem with numerous plugins and community contributions.
TypeORM has a diverse ecosystem with extensive community-contributed plugins and extensions.

Features	sequelize	typeorm

Size	Sequelize has a moderate footprint, providing a comprehensive ORM for relational databases.	TypeORM is feature-rich, supporting various databases, resulting in a larger footprint.
Consistency	Sequelize offers consistent and structured data modeling for relational databases.	TypeORM enforces a consistent schema for a wide range of databases, promoting data integrity.
Mutability	Sequelize supports dynamic migrations, facilitating schema changes in relational databases.	TypeORM allows for easy schema modifications, accommodating changing business needs.
Localization	Sequelize lacks built-in support for localization but can be extended using custom code.	TypeORM does not include native localization support but can be extended using custom implementations.
Extensibility	Sequelize is extensible, supporting custom hooks, plugins, and query customization.	TypeORM is extensible, allowing the creation of custom repositories, listeners, and query builders.
Maintenance	Sequelize is well-maintained, with frequent updates and a strong community.	TypeORM is actively maintained, with a dedicated team and a supportive community.
Popular	Sequelize is a popular choice for developers working with relational databases in Node.js.	TypeORM is popular for its extensive feature set and support for various databases.
Learning Curve	Sequelize has a moderate learning curve, particularly for those new to relational databases.	TypeORM has a moderate learning curve, but its feature set may require more exploration.
Ecosystem	Sequelize benefits from a strong ecosystem with numerous plugins and community contributions.	TypeORM has a diverse ecosystem with extensive community-contributed plugins and extensions.

sequelize

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

:wrench: Tools

: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.

Which is Better Node.js ORM Libraries?sequelize vs typeorm