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Visual Paradigm Community Edition - A Free UML Tool

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

  • Class Diagram
    Draw Class Diagram for API design. With no redundant widgets on the screen, you can design freely in a large diagram editor.
  • ERD
    UML software with ERD tool for database design. Boost efficiency with 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
    Visual Paradigm provides both UML tool and SysML tool - Draw SysML Requirement Diagram and 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. Use the UML diagram tool to draw 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 UML 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. Visual Paradigm is a UML software designed with efficiency and quality in mind.

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. Visual Paradigm is a UML tool designed for great outcome.

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

Visual Paradigm is a full-featured UML software that allows you to establish linkages among UML model elements and with external resources like webpages and physical file.

Who's using this great UML software?

Visual Paradigm 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?