typeorm vs sequelize-typescript vs @nestjs/sequelize
Node.js ORM Libraries Comparison
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What's Node.js ORM Libraries?

Node.js ORM libraries provide developers with tools to interact with databases using object-oriented programming principles. They abstract the complexities of SQL queries and database interactions, allowing developers to work with JavaScript objects instead of raw SQL. This enhances productivity, maintainability, and readability of the code, especially in large applications. Each of these libraries offers unique features and integrations, making them suitable for different project requirements and preferences.

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typeorm2,586,110
35,74920.7 MB2,49017 days agoMIT
sequelize-typescript374,511
2,834216 kB2642 years agoMIT
@nestjs/sequelize112,976
25931.4 kB58 months agoMIT
Feature Comparison: typeorm vs sequelize-typescript vs @nestjs/sequelize

TypeScript Support

  • typeorm:

    TypeORM is fully written in TypeScript and offers comprehensive support for TypeScript features, allowing developers to leverage strong typing and decorators for defining entities and relationships.

  • sequelize-typescript:

    sequelize-typescript is designed specifically for TypeScript, offering decorators and type definitions that make it easy to define models and relationships, ensuring a more robust development experience with TypeScript's features.

  • @nestjs/sequelize:

    @nestjs/sequelize provides seamless integration with TypeScript, allowing developers to define models and database interactions using TypeScript decorators, enhancing type safety and reducing runtime errors.

Integration with Frameworks

  • typeorm:

    TypeORM is framework-agnostic and can be used with various Node.js frameworks, including Express and NestJS. It provides flexibility in how you structure your application while offering powerful ORM features.

  • sequelize-typescript:

    sequelize-typescript can be used independently but is often integrated into Express or similar frameworks. It provides a straightforward way to define models and interact with the database, but lacks the specific framework integrations found in NestJS.

  • @nestjs/sequelize:

    @nestjs/sequelize is tailored for NestJS applications, providing decorators and modules that integrate seamlessly with the NestJS ecosystem, making it ideal for building scalable server-side applications.

Query Building

  • typeorm:

    TypeORM offers a powerful query builder that supports both SQL-like syntax and a fluent API, allowing for complex queries and aggregations, making it suitable for applications with intricate data requirements.

  • sequelize-typescript:

    sequelize-typescript inherits Sequelize's query building features, providing a rich set of methods for constructing queries and handling relationships, making it easy to perform CRUD operations.

  • @nestjs/sequelize:

    @nestjs/sequelize utilizes Sequelize's powerful query building capabilities, allowing developers to construct complex queries using a fluent API, which simplifies database interactions.

Migrations

  • typeorm:

    TypeORM has a robust migration system built-in, allowing developers to create, run, and revert migrations easily, providing a comprehensive solution for managing database schema changes.

  • sequelize-typescript:

    sequelize-typescript supports migrations as part of the Sequelize ecosystem, enabling developers to create and run migrations to keep the database schema in sync with application changes.

  • @nestjs/sequelize:

    @nestjs/sequelize supports migrations through Sequelize, allowing developers to manage database schema changes easily and maintain version control over database structures.

Community and Ecosystem

  • typeorm:

    TypeORM has a large and active community, with extensive documentation and a variety of resources available, making it easier for developers to find support and examples.

  • sequelize-typescript:

    sequelize-typescript has a smaller community compared to Sequelize but benefits from the established Sequelize ecosystem, which includes various plugins and extensions.

  • @nestjs/sequelize:

    @nestjs/sequelize benefits from the growing NestJS community, which provides extensive documentation, tutorials, and support for developers building applications with NestJS.

How to Choose: typeorm vs sequelize-typescript vs @nestjs/sequelize
  • typeorm:

    Select TypeORM if you need a versatile ORM that supports both Active Record and Data Mapper patterns, along with a rich set of features like migrations, caching, and support for various databases. TypeORM is particularly suited for applications that require complex queries and relationships.

  • sequelize-typescript:

    Opt for sequelize-typescript if you prefer TypeScript support with Sequelize and want to take advantage of decorators for defining models, which can lead to cleaner and more maintainable code. This package is ideal for projects that heavily utilize TypeScript and require a strong type system.

  • @nestjs/sequelize:

    Choose @nestjs/sequelize if you are developing a NestJS application and want to leverage Sequelize's capabilities with built-in support for dependency injection and decorators, making it easier to manage database interactions in a modular way.

Similar Npm Packages to typeorm

typeorm is an Object-Relational Mapping (ORM) library for TypeScript and JavaScript applications. It provides a powerful and flexible way to interact with databases, allowing developers to work with database entities as if they were regular JavaScript objects. TypeORM supports various database systems, including MySQL, PostgreSQL, SQLite, and more, making it a versatile choice for many applications. Its features include support for migrations, relations, and eager/lazy loading, which help streamline database interactions and improve productivity.

While TypeORM is a popular choice, there are several alternatives in the Node.js ecosystem that also provide ORM capabilities. Here are a few noteworthy options:

  • bookshelf is a JavaScript ORM for Node.js that is built on top of the Knex.js SQL query builder. It provides a simple and intuitive API for interacting with relational databases while supporting features like relations, virtuals, and pagination. Bookshelf is a great option if you prefer a lightweight ORM that offers flexibility and ease of use, especially if you are already using Knex for query building.
  • knex is primarily a SQL query builder for Node.js, but it can also be used as a foundation for building your own ORM. It provides a powerful and flexible way to construct SQL queries and supports various database systems. If you need fine-grained control over your SQL queries and prefer to build your own data access layer, Knex is an excellent choice. However, it requires more manual setup compared to full-fledged ORMs like TypeORM or Bookshelf.
  • sequelize is another popular ORM for Node.js that supports various SQL dialects, including MySQL, PostgreSQL, and SQLite. It offers a rich set of features, including model validation, associations, and migrations. Sequelize is known for its extensive documentation and active community, making it a solid choice for developers looking for a comprehensive ORM solution. If you need a robust and feature-rich ORM with a focus on SQL databases, Sequelize is worth considering.

To see how TypeORM compares with Bookshelf, Knex, and Sequelize, check out the comparison: Comparing bookshelf vs knex vs sequelize vs typeorm.

Similar Npm Packages to sequelize-typescript

sequelize-typescript is an ORM (Object-Relational Mapping) library for TypeScript and Node.js that builds on top of Sequelize. It allows developers to interact with relational databases using TypeScript's type system, providing a more robust and type-safe experience. With sequelize-typescript, you can define models, relationships, and perform database operations while leveraging TypeScript's features, making it easier to maintain and scale applications.

While sequelize-typescript is a powerful option, there are several alternatives in the Node.js ecosystem that also provide ORM capabilities. Here are a few notable ones:

  • bookshelf is a JavaScript ORM for Node.js that is built on top of Knex.js, a SQL query builder. Bookshelf provides a simple and elegant way to interact with relational databases, offering features such as model relationships, virtuals, and pagination. It is particularly well-suited for developers who prefer a more lightweight and flexible ORM that allows for fine-grained control over database interactions. If you are looking for an ORM that is easy to use and integrates seamlessly with Knex.js, Bookshelf is a great choice.

  • typeorm is a powerful ORM for TypeScript and JavaScript that supports various databases, including MySQL, PostgreSQL, SQLite, and more. It provides a rich set of features, including support for migrations, relations, and advanced querying capabilities. TypeORM is designed to work seamlessly with TypeScript, making it a strong alternative to sequelize-typescript for developers who want a comprehensive ORM solution that fully leverages TypeScript's capabilities. If you need a feature-rich ORM with extensive support for different database systems, TypeORM is an excellent option.

  • waterline is an ORM that is part of the Sails.js framework but can also be used independently. It provides a simple and consistent API for interacting with various databases, allowing developers to switch between different database backends with minimal changes to their code. Waterline supports a range of data stores, including SQL and NoSQL databases, making it a versatile choice for applications that may need to work with different types of databases. If you are looking for an ORM that offers flexibility and ease of use across multiple database systems, Waterline is worth considering.

To see how sequelize-typescript compares with bookshelf, typeorm, and waterline, check out the comparison: Comparing bookshelf vs sequelize-typescript vs typeorm vs waterline.

Similar Npm Packages to @nestjs/sequelize

@nestjs/sequelize is an integration package for using Sequelize ORM with NestJS, a progressive Node.js framework for building efficient and scalable server-side applications. This package provides decorators and modules that allow developers to easily manage database interactions and define models in a way that aligns with NestJS's architecture. By leveraging Sequelize's powerful features, developers can efficiently perform CRUD operations and manage relationships between different entities in their applications.

While @nestjs/sequelize is a robust option for integrating Sequelize with NestJS, there are other alternatives worth considering:

  • sequelize-typescript is an extension of Sequelize that adds TypeScript decorators and type safety to the Sequelize ORM. It allows developers to define models using TypeScript classes and decorators, making it easier to work with TypeScript in a Sequelize-based application. If you are looking for a way to enhance your Sequelize experience with TypeScript while maintaining a clean and organized codebase, sequelize-typescript is an excellent choice.

  • typeorm is another popular ORM that supports multiple databases and is designed to work seamlessly with TypeScript. It offers a rich set of features, including support for migrations, relations, and advanced querying capabilities. TypeORM is a great alternative if you are looking for an ORM that provides a more extensive feature set and flexibility in terms of database support. It is particularly well-suited for applications that require complex data models and relationships.

To see how @nestjs/sequelize compares with sequelize-typescript and typeorm, check out the comparison: Comparing @nestjs/sequelize vs sequelize-typescript vs typeorm.

README for typeorm

TypeORM is an ORM that can run in Node.js, Browser, Cordova, Ionic, React Native, NativeScript, Expo, and Electron platforms and can be used with TypeScript and JavaScript (ES2021). Its goal is to always support the latest JavaScript features and provide additional features that help you to develop any kind of application that uses databases - from small applications with a few tables to large-scale enterprise applications with multiple databases.

TypeORM supports more databases than any other JS/TS ORM: Google Spanner, Microsoft SqlServer, MySQL/MariaDB, MongoDB, Oracle, Postgres, SAP HANA and SQLite, as well we derived databases and different drivers.

TypeORM supports both Active Record and Data Mapper patterns, unlike all other JavaScript ORMs currently in existence, which means you can write high-quality, loosely coupled, scalable, maintainable applications in the most productive way.

TypeORM is highly influenced by other ORMs, such as Hibernate, Doctrine and Entity Framework.

Features

  • Supports both DataMapper and ActiveRecord (your choice).
  • Entities and columns.
  • Database-specific column types.
  • Entity manager.
  • Repositories and custom repositories.
  • Clean object-relational model.
  • Associations (relations).
  • Eager and lazy relations.
  • Unidirectional, bidirectional, and self-referenced relations.
  • Supports multiple inheritance patterns.
  • Cascades.
  • Indices.
  • Transactions.
  • Migrations and automatic migrations generation.
  • Connection pooling.
  • Replication.
  • Using multiple database instances.
  • Working with multiple database types.
  • Cross-database and cross-schema queries.
  • Elegant-syntax, flexible and powerful QueryBuilder.
  • Left and inner joins.
  • Proper pagination for queries using joins.
  • Query caching.
  • Streaming raw results.
  • Logging.
  • Listeners and subscribers (hooks).
  • Supports closure table pattern.
  • Schema declaration in models or separate configuration files.
  • Supports MySQL / MariaDB / Postgres / CockroachDB / SQLite / Microsoft SQL Server / Oracle / SAP Hana / sql.js.
  • Supports MongoDB NoSQL database.
  • Works in Node.js / Browser / Ionic / Cordova / React Native / NativeScript / Expo / Electron platforms.
  • TypeScript and JavaScript support.
  • ESM and CommonJS support.
  • Produced code is performant, flexible, clean, and maintainable.
  • Follows all possible best practices.
  • CLI.

And more...

With TypeORM, your models look like this:

import { Entity, PrimaryGeneratedColumn, Column } from "typeorm"

@Entity()
export class User {
    @PrimaryGeneratedColumn()
    id: number

    @Column()
    firstName: string

    @Column()
    lastName: string

    @Column()
    age: number
}

And your domain logic looks like this:

const userRepository = MyDataSource.getRepository(User)

const user = new User()
user.firstName = "Timber"
user.lastName = "Saw"
user.age = 25
await userRepository.save(user)

const allUsers = await userRepository.find()
const firstUser = await userRepository.findOneBy({
    id: 1,
}) // find by id
const timber = await userRepository.findOneBy({
    firstName: "Timber",
    lastName: "Saw",
}) // find by firstName and lastName

await userRepository.remove(timber)

Alternatively, if you prefer to use the ActiveRecord implementation, you can use it as well:

import { Entity, PrimaryGeneratedColumn, Column, BaseEntity } from "typeorm"

@Entity()
export class User extends BaseEntity {
    @PrimaryGeneratedColumn()
    id: number

    @Column()
    firstName: string

    @Column()
    lastName: string

    @Column()
    age: number
}

And your domain logic will look this way:

const user = new User()
user.firstName = "Timber"
user.lastName = "Saw"
user.age = 25
await user.save()

const allUsers = await User.find()
const firstUser = await User.findOneBy({
    id: 1,
})
const timber = await User.findOneBy({
    firstName: "Timber",
    lastName: "Saw",
})

await timber.remove()

Samples

Take a look at the samples in sample for examples of usage.

There are a few repositories that you can clone and start with:

Extensions

There are several extensions that simplify working with TypeORM and integrating it with other modules:

Contributing

Learn about contribution here and how to set up your development environment here.

This project exists thanks to all the people who contribute:

Sponsors

Open source is hard and time-consuming. If you want to invest in TypeORM's future, you can become a sponsor and allow our core team to spend more time on TypeORM's improvements and new features. Become a sponsor

Gold Sponsors

Become a gold sponsor and get premium technical support from our core contributors. Become a gold sponsor

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