Terrastruct : Terrastruct is a tool to create diagrams that excel at visually explaining complex systems, such as your organization's engineering architecture.
PlantUML : PlantUML is an open-source tool allowing users to create UML diagrams from a plain text language
code2flow : Interactive code to flowchart converter. Turn your workflows, algorithms and manuals into easy to understand diagrams via simple code.
dbv.php : dbv.php is a database version control web application featuring schema management, revision scripts, and more!
Azimutt : Azimutt is an Entity Relationship Diagram (ERD) targeting real world database schema (big & messy).
Infinite ASCII diagrams, save to Google Drive, resize, freeform draw, and export straight to text/html.
