InversifyJS
A lightweight dependency injection container for TypeScript and JavaScript apps.
- Stars
- 12.1k
- Forks
- 708
- Licence
- MIT
- Language
- TypeScript
- Last update
- 12 months ago
- Type
- Library
What it is
InversifyJS is an inversion of control (IoC) container for TypeScript and JavaScript apps, including Node.js. It uses class constructors to identify and inject the dependencies a class needs, which helps developers write code that follows SOLID and other object-oriented design practices. The README says the project is moving to the inversify/monorepo repository, where future releases will be published.
- Wiring service classes and their dependencies together in a Node.js application
- Organizing a TypeScript codebase around injected interfaces instead of hard-coded instances
- Swapping implementations of a dependency, such as for testing, through container configuration
Great for
- TypeScript developers who want structured dependency injection in Node.js back-end code
- Teams following SOLID or composition-based object-oriented design
- Developers who want a small runtime footprint, as the project lists low runtime overhead as a goal
Not ideal for
- Developers who want a complete application framework, since InversifyJS only provides the injection container itself
- People new to dependency injection concepts, since the README assumes familiarity with OOP and IoC patterns
- Projects that need active development in this repository, since the README says future work is moving to the monorepo
How to get it
- 1
Install with a package manager
You'll need: Node.js · npm
Clone the repository
git clone https://github.com/inversify/InversifyJS - 2
Run it
- Read the documentation at https://inversify.io
- Install the inversify package from npm
- Define interfaces and classes for your services
- Bind them in a container and resolve your top-level class
- 3
Get the most out of it
- Follow the documentation at https://inversify.io for the full API
- Watch the inversify/monorepo repository for future releases, as the README recommends
Downloads
Strengths
- The README describes it as lightweight and focused on one job: dependency injection
- It is written in TypeScript and aims to encourage good OOP and IoC practices
- It has an MIT license and a documentation site at inversify.io
Trade-offs
- The README says development is moving to a different repository, so users should check where updates now land
- The README is truncated and gives little detail on specific APIs, so the actual feature set needs checking in the docs
- The license copyright line only covers 2015-2017, so the project's full history of contributors should be checked before relying on that detail
How it compares
| Project | Stars | Type | Level | Updated | Best for |
|---|---|---|---|---|---|
| InversifyJS (this) | 12.1k | Library | intermediate | 12 months ago | TypeScript developers who want structured dependency injection in Node.js back-end code |
| getx | 11.2k | Library | beginner | 5 days ago | Flutter developers who want state management, routing and dependency injection from a single package |
| effect | 17.5k | Library | advanced | 4 days ago | Teams building large or long-lived TypeScript back-end services |
Stats synced from GitHub. The assessment above was drafted with AI from the project's README on 2026-10-29 and may miss recent changes — check the README before relying on a command. MIT licence: free to use, modify and distribute, including commercially, as long as you keep the copyright notice.