Tomaco (Tool for Matching and Composition) is a web application for Semantic Web Service matchmaking and composition. It integrates its own, novel set of matching strategies, tailored to the SAWSD/WSDL universal standards, that ranked high on state-of-the-art comparison on both effectiveness and performance. Strategies can be applied on a dynamic repository of existind or user-contributed service collections and ontologies. Users are able to register to upload content and perform customized experiments, choosing between strategies, thresholds and parameters. Results are also accompanied by rating justification. For composition TOMACO employes a Blackbox AI-planning method.