Dia Alternatives

Xfig is an interactive drawing tool which runs under X Window System Version 11 Release 4 (X11R4) or later, on most UNIX-compatible platforms, and e.g. under Darwin on the MacIntosh and any X server under Microsoft Windows.

Graphity is a diagram editor that can be used to quickly and effectively generate drawings and to apply automatic layouts to a range of different diagrams and networks.

Shapes is a simple, elegant diagramming app for OS X. Shapes gives you all of the most important features you need in a diagramming tool without all the extra cruft, and without breaking the bank!.

Generate diagram-rich reports and documents, instantly. Generate software architecture diagrams, network diagrams, UML diagrams, cloud diagrams and many more!

PathVisio is a free open-source pathway analysis and drawing software that allows drawing, editing and analysing biological pathways.

Create Diagram Easily in a Minute, anywhere anytime Smart Diagram brings easy diagram making to Android Organize ideas and thoughts with clear diagrams. Simple & Easy, No painful learning. You can note down your flash ideas with flow chart now! Usage: Flow Chart, Tree Diagram.

UMLGraph allows the declarative specification and drawing of UML class and sequence diagrams. The current features are part of an ongoing effort aiming to provide support for all types UML diagrams.

Mark makes drawing flowcharts and diagrams as easy as drawing with a pencil. It automatically converts shapes and text as you draw with Apple Pencil.

With Ilograph diagrams, you define your resources once, then show how they're related from many different perspectives. Seamlessly change perspectives to demonstrate cross-functional dependencies and shared responsibilities.

Diagrams is a powerful, flexible, declarative domain-specific language for creating vector graphics, using the Haskell programming language.