Free & Open-Source ConceptDraw Office Alternatives

Business diagrams and projects suite.

1. draw.io ↗ FOSSPRIVATESELF-HOST
   Free Visio-style flowchart and diagramming tool.
   ●○○Easy · Reads common file formats
2. yEd ↗
   Powerful free desktop diagramming app.
   ●○○Easy · Reads common file formats
3. Diagrams.net ↗ FOSSPRIVATE
   Browser version of draw.io with cloud storage.
   ●○○Easy · Reads common file formats