Dia is described as 'Open-source diagram editor with cross-platform support offering entity relationship, UML, flowchart, and network diagram creation with editable objects' and is a very popular Diagram Editor in the business & commerce category. There are more than 50 alternatives to Dia for a variety of platforms, including Windows, Web-based, Mac, Linux and iPad apps. The best Dia alternative is draw.io, which is both free and Open Source. Other great apps like Dia are yEd Graph Editor, Excalidraw, LibreOffice - Draw and Lucidchart.
Draft.io is a visual and living document with the power of a flexible and collaborative blackboard. It’s a perfect environment to investigate, solve problems creatively, manage your projects visually, and document just what it takes to move forward.
Core2D is a multi-platform application for making data driven 2D diagrams. The application has built-in wyswig vector graphics editor where you can bind data to shapes, share data across multiple documents, edit documents using layers.
Poland
EU
MockupTiger is a web based application that helps you to build fluid wireframes, mockups or prototypes for your next web application or desktop software.
United States
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.
GermanyEU
Generate diagram-rich reports and documents, instantly. Generate software architecture diagrams, network diagrams, UML diagrams, cloud diagrams and many more!
Simple schematic/diagram editor with focus on quick diagram generation with high quality graphics.
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!.
United States
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.
GreeceEU
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.
Hong Kong SAR China
Vector drawing tool with nondestructive Boolean operations, smart shapes, gradient fills, shadows and so on built exclusively for tablets and hybrid devices on Windows 10.
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.
United States
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.
