PDDON
Free open-source online diagramming toolFlowcharts, UML, BPMN, and more
Highlights
What you can do with it
- Draw a flowchart
- Design a system architecture diagram
- Draw a mind map
How to use it
- 1 Open the PDDON website
- 2 Pick the diagram type you need
- 3 Drag components onto the canvas and draw
- 4 Use modeling or code generation features if needed
- 5 Save or export the finished diagram
Who it is for
Pros
- Free and open source
- Wide range of diagram types
- Modeling and code generation support
- Customizable components
Limitations
- Free and open-source terms can change over time
- Advanced diagram types and modeling features have a learning curve
- Complex diagrams need careful layout to stay readable
- Access depends on the online service being available
What PDDON is
PDDON is a free, open-source online diagramming tool with low-code and AI-powered intelligent assistance. It can be used to draw flowcharts, architecture diagrams, mind maps, UML, BPMN, network topology diagrams, ER diagrams, database model diagrams, Venn diagrams, fishbone diagrams, and more. It supports object modeling, database modeling, and code or script generation, and it provides a rich library of customizable drawing components. The goal is a more intimate and easy-to-use design experience that works in the browser without a heavy install.
What you can do with it
- Draw flowcharts, architecture diagrams, and mind maps
- Create UML, BPMN, network topology, and ER diagrams
- Build database model diagrams and other specialized charts
- Use object modeling, database modeling, and code generation
- Customize the drawing component library for your needs
Who it is for
- Developers and architects documenting systems
- Analysts modeling databases and business processes
- Students and teachers who need diagrams quickly
- Teams that want one tool for many diagram types
What to watch out for
The free and open-source status can change over time, so check the current terms before you build a workflow around it. Advanced diagram types such as BPMN and database modeling take time to learn properly, and complex diagrams need careful layout to stay readable. Some features, including code generation and modeling, are more technical than a simple flowchart, so expect a learning curve. Access depends on the online service being available. When quality matters, export a small draft first to confirm the result before producing the final file. Generated suggestions are for reference only, so verify anything that affects professional judgment or important data.
FAQ
Is PDDON free?
Yes, it is described as a free, open-source online diagramming tool.
What diagrams can I draw?
Flowcharts, architecture diagrams, mind maps, UML, BPMN, network topology, ER diagrams, and database model diagrams.
Does it support code generation?
It supports code and script generation along with object and database modeling.
Who is it for?
Developers, architects, analysts, and anyone who needs diagrams quickly.
Why it is free
What the official page says： 免费
Free limits, trial length and features are decided by the official site and can change at any time.
Product preview
Screenshot archived from the listing page, for preview only.
