The Nemo Explain Visualizer (nev) is a tool for inspecting reasoning traces and building queries for the Nemo rule engine. It is a combined effort between the Interactive Media Lab Dresden (Prof. Dachselt) and Knowledge-based Systems Group (Prof. Krötzsch). Within it, the students Tobias Wieland (during his Großer Beleg) and Afshin Zanganeh (as an SHK) have contributed greatly to nev.