Diagram Designer

Diagram Designer

Diagram Designer is a free, open-source, cross-platform diagramming software for creating flowcharts, UML diagrams, BPMN diagrams, network diagrams, maps, floor plans, and more. It has an intuitive drag-and-drop interface with a large collection of vector shapes and templates.
Diagram Designer image
flowcharts uml bpmn network-diagrams maps floor-plans

Diagram Designer: Free Cross-Platform Diagramming Software

Free, open-source diagramming software for creating various types of diagrams, featuring a drag-and-drop interface and a wide range of vector shapes and templates.

What is Diagram Designer?

Diagram Designer is a feature-rich, free, open-source diagramming and vector graphics application for Windows, Mac and Linux. It can be used to create a variety of diagrams like flowcharts, UML diagrams, BPMN, network diagrams, wireframes, maps, floor plans and more.

It has an easy-to-use drag and drop interface allowing you to construct complex diagrams by adding shapes from an extensive built-in shape library containing flowchart elements, common shapes, arrows, ERD and UML symbols. Shapes can be styled and customized to create visually appealing diagrams.

Key features include a large collection of templates and examples to accelerate diagram drawing, advanced snapping functionality for quick connections, interactive grouping to easily manipulate diagram elements together, layers and swimlanes to organize your design, a formatting panel providing fine control over appearance and styles, export to PNG, JPG and PDF as well other advanced capabilities.

As a cross-platform vector graphics editor, Diagram Designer works well on Windows, macOS and Linux. It can open and save to GraphML file format. The software is available completely free of cost and the open-source code is hosted on GitHub allowing advanced users to extend functionality if required.

With its rich feature set, customizable interface and shapes and cross-platform availability, Diagram Designer is an appealing free alternative to proprietary tools like Microsoft Visio, Lucidchart and Gliffy for both personal and professional use.

Diagram Designer Features

Features

  1. Drag-and-drop interface
  2. Large collection of vector shapes and templates
  3. Create flowcharts, UML diagrams, BPMN diagrams, network diagrams, maps, floor plans
  4. Cross-platform - Windows, Mac, Linux
  5. Customizable themes and styles
  6. Export to PNG, JPG, PDF, SVG

Pricing

  • Free
  • Open Source

Pros

Free and open source

Intuitive and easy to use

Great for basic diagramming needs

Active development and user community

Cons

Limited features compared to paid alternatives

Lacks advanced diagramming capabilities

No cloud collaboration features

Can be slow with large diagrams


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