LoopBack is a highly-extensible, open-source Node.js framework that enables you to create dynamic end-to-end REST APIs with little or no coding. This site contains documentation for: LoopBack 4 - Current release. LoopBack 3.x - Active LTS. Details can be found in our LTS plan. LoopBack 2.x - Maintenance LTS. Details can be found in our LTS plan. Contributing to LoopBack - How to contribute to the