HiPoP is a peer-to-peer computing platform running in a heterogeneous environment, dedicated to perform applications such as task graphs. The main goal of this platform, contrary to many existing platform, is to provide easy to use tools permitting users who need computing power, to perform their parallel or partially parallelizable applications such as DAG. In addition to graphical tools helping users to conceive DAG to perform, the ease of use of the platform is reinforced because of the quasi non-existence of administration procedure. HiPoP is founded on a peer-to-peer architecture which gives it flexibility, extensibility and ease of deployment.