MDG for Sparx' Enterprise Architect to Create TRAK arch. descriptions
small console GML or graphviz DOT graph viewer
A color-code design tool
Your graphical tool for Syntactic/Semantic Structure Analysis of texts
State Dependency deconstructor and mapper for C source code.
A graphical Finite State Machine (FSM) designer.
Graphics generator for pie diagram matrix from spreadsheets
Simulation of historical and contemporary launch vehicles
Java Decision Diagrams (BDD) libraries: JDD and JBDD