Parallel and distributed systems play an important role in the development of information technologies and their applications today. These systems are very useful but their development and usage is inherently more difficult. A solution can be a tool focused on systematic, well-arranged design, analysis and verifications these systems. This article briefly describes the tool Kaira intended for modelling, simulation and generation of parallel applications. A developer is able to model parallel programs and different aspects of communication using Kaira. Models are based on the variant of Coloured Petri Nets. The important feature of our tool automatic is generation of standalone parallel applications from models. The final application can be generated with different parallel back-ends, currently it can be threads or MPI.