LoopBack 4 is currently available as Developer Preview #3.

LoopBack 4: Build Amazing APIs

LoopBack 4 is the next step in the evolution of LoopBack.


Get Started with LoopBack 4

A Brand New Core

A brand new LoopBack core to deliver great extensibility and flexibility written in TypeScript/ES2017.

OpenAPI Spec Driven REST API

Create powerful APIs easily with a new creation experience for defining REST API's and handling API requests/responses.

Unbelievably Extensible

A new, improved programming model with Dependency Injection and new concepts such as Components, Mixins, Repositories, etc. make this the most extensible version yet.

How Can We Help?

We've curated resources to help you get started faster with LoopBack 4.

Ready to build amazing things?
Try LoopBack 4 now.