Diagramo : Diagramo is an online flowchart software.
EtherPad : Etherpad is an Open Source online editor providing collaborative editing in really real-time powered by Node.js
Terrastruct : Terrastruct is a tool to create diagrams that excel at visually explaining complex systems, such as your organization's engineering architecture.
migra : migra is a schema comparison tool for PostgreSQL.
It's a command line tool, and Python library. Find differences in database schemas as easily as runn...