Diagramming tools
8 apps ranked by verified data. See how ranking works
draw.io (diagrams.net) is a free, open-source diagramming tool for flowcharts, UML, network and ERD diagrams, with desktop apps and Confluence/Jira integrations.
Lucidchart is a web-based diagramming application for flowcharts, UML, ERDs, network diagrams, and org charts, with real-time collaboration and data-linked shapes.
Gliffy is a diagramming tool for flowcharts, UML, network diagrams, and org charts, best known for its native Confluence and Jira integrations.
Cacoo, by Nulab, is an online diagramming tool for flowcharts, wireframes, network diagrams, and org charts with real-time team collaboration.
SmartDraw is a diagramming application for flowcharts, org charts, floor plans, UML, and ERDs, with automation, templates, and enterprise integrations.
Creately is a visual collaboration and diagramming platform for flowcharts, UML, ERD, and org charts, with data-linked shapes and real-time collaboration.
Eraser is a docs-and-diagrams tool for engineering teams, featuring diagram-as-code, AI diagram generation, and architecture/sequence/ERD diagrams.