##LoopBack **v1.0.0** > **Introduction** > > LoopBack is a mobile backend framework that puts you in control. As a mobile developer you decide where to run your mobile backend - in the cloud or on permise. > LoopBack is built on open source Node.js and leverages the power of Node and the community that stands behind Node. > > LoopBack is here to help you develop mobile applications with rich functionality and data that is in your datacenter and the cloud. > Since LoopBack is built on open source, it is highly extensible and familiar with developers already using Node. > Node.js leverages Javascript. The ubiquituous language of the web that most developers have already had familiarity with it's ease of use. ---