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Visual Paradigm Community Edition - A Free UML Tool

A full-featured, free UML modeling software for visual modeling with UML 2.x diagrams

  • Class Diagram
    Using Class Diagram for the design of an API. With no redundant widgets on the screen, you can design freely in a large diagram editor.
  • ERD
    Design database with Entity Relationship Diagram. Take advantage of features like auto column, inline column editing, auto FK creation, etc.
  • Sequence Diagram
    Model system behaviors with UML sequence diagram tool. With the use of the Resource Catalog diagram tool, a sequence diagram can be created quickly and effortlessly.
  • Requirement Diagram
    Model system requirements by using SysML Requirement Diagram. We also support other SysML diagram types like IBB, BDD and Parametric Diagram.
  • Use Case Diagram
    Model high level business stakeholders and business goals using the UML use case diagram tool. Elaborate a goal by creating sub-sequence diagram and sub-activity diagram.

Everything you need, in one place

UML Support

UML Support


Draw ANY of the UML2 diagrams

Modeling Capability

Modeling Capability


Re-usable elements, syntax checking, sub-diagrams, etc

Efficiency

Efficiency


We care about the difference between a click and a drag.

Cross Platforms

Cross Platforms


Modeling in ANY Java-enabled platforms - Windows, Mac OS X, Linux

Resource Catalog

Resource Catalog


Draw diagrams in quick

Just a mouse drag to draw new shape, and a few more drags for a complete design. Resource Catalog is simply the synonym of efficiency and quality.

Real Modeling Tools


We build modeling software, not drawing tool

Reuse elements in different models, ensure correctness of design with syntax checking, establish multiple level of abstraction with sub-diagrams, add reference to design artifacts, etc.

If you have ever used a real modeling software, you will appreciate how much it can help with your modeling work.

Resource Catalog
Element Referencing

Element Referencing


Linkage established

Just a mouse drag to draw new shape, and a few more drags for a complete design. Resource Catalog is simply the synonym of efficiency and quality.

Who's using Visual Paradigm?

We are trusted by over 230,000 people in companies ranging from small business to Fortune 500 companies, universities and government units.

Who's using Visual Paradigm?