Lampyre - Lampyre - an efficient data analysis and OSINT multi-tool for everyone.
GraphThing - GraphThing is a tool that allows you to create, manipulate and study graphs.
sn0int - sn0int is a semi-automatic OSINT framework and package manager
jsflap - A web-based NFA and DFA construction and testing tool.
DataWalk - DataWalk is a software platform to connect numerous large data sets, both external and internal, into a single repository for fast visual analysis.
Graphviz - Graphviz is open source graph visualization software. It has several main graph layout programs.