UML Modeling Tools

All apps in UML Modeling Tools category. Use the filters below to narrow down your search. 
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  1. Draw lets you produce anything from a quick sketch to a complex plan, and gives you the means to communicate with graphics and diagrams. With a maximum page size of 300cm by 300cm, Draw is a an excellent package for producing technical drawings, general posters, and much else.

    • Diagram Editor
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • BSD
    • PortableApps.com
    • Flathub
    LibreOffice - Draw screenshot 1
    Best alternatives are Inkscape iconInkscapeanddraw.io icondraw.io95 alternatives
  2. yEd Graph Editor icon
     437 likes

    yEd is a powerful diagram editor that can be used to quickly create diagrams manually or import external data for analysis and auto-magically arrange even large data sets by just pressing a button. You can use yEd to quickly create flow charts, BPMN and UML diagrams...

    yEd Graph Editor screenshot 1
    Best alternatives are draw.io icondraw.ioandDia iconDia114 alternatives
  3. Lucidchart icon
     533 likes

    Cloud-based tool for diagramming and collaboration, with 20M users globally, supports Visio import/export and features UML modeling and more.

    • Mind Mapping Tool
    • FreemiumProprietary
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Software as a Service (SaaS)
    Lucidchart Templates and Examples: With hundreds of template examples to choose from, you can start diagramming in no time.
    Best alternatives are draw.io icondraw.ioandDia iconDia49 alternatives
  4. PlantUML icon
     118 likes

    PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams. The generator can be run anywhere within JVM and integrated with various application such as wiki, text editor, IDE, programming language, documentation generator, and others.

    • Diagram Editor
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • Chrome OS
    Common PlantUML JAR GUI application that will render text file into image.
    Best alternatives are draw.io icondraw.ioandExcalidraw iconExcalidraw112 alternatives
  5. Mermaid icon
     27 likes

    Ever wanted to simplify documentation and avoid heavy tools like Visio when explaining your code? This is why mermaid was born, a simple markdown-like script language for generating flowcharts, Gantt charts and sequence diagrams from text via JavaScript.

    • Diagram Editor
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Self-Hosted
    • JavaScript
    • Node.JS
    Mermaid screenshot 1
    Best alternatives are yEd Graph Editor iconyEd Graph EditorandPlantUML iconPlantUML24 alternatives
  6. Umbrello icon
     41 likes

    Umbrello is a Unified Modelling Language (UML) modelling tool and code generator. It can create diagrams of software and other systems in the industry-standard UML format, and can also generate code from UML diagrams in a variety of programming languages.

    Umbrello screenshot 1
    Best alternatives are draw.io icondraw.ioandDia iconDia51 alternatives
  7. Visual Paradigm icon
     42 likes

    Visual Paradigm for UML (VP-UML) is a UML design tool and UML CASE tool designed to aid software development. VP-UML supports key modeling standards such as Unified Modeling Language (UML) 2.4, SysML, ERD, DFD, BPMN 2.0, ArchiMate 2.0, etc.

    Visual Paradigm screenshot 1
    Best alternatives are draw.io icondraw.ioandyEd Graph Editor iconyEd Graph Editor79 alternatives
  8. PDDON icon
     5 likes

    A daily drawing tool that supports low code for learning or office use. It can be used for flowchart, mind map, UML diagram, ER diagram, network topology diagram, BPMN, Venn diagram, database model diagram, whiteboard drawing, infinite canvas, and more.

    Warning
    home page
    Best alternatives are draw.io icondraw.ioandyEd Graph Editor iconyEd Graph Editor13 alternatives
  9. StarUML icon
     41 likes

    StarUML is a program to develop fast, flexible, extensible, featureful, and freely-available UML/MDA platform running on Win32 platform. The goal of the StarUML project is to build a software modeling tool and also platform that is a compelling replacement of commercial UML...

    StarUML screenshot 1
    Best alternatives are yEd Graph Editor iconyEd Graph Editor54 alternatives
  10. ProcessOn icon
     22 likes

    ProcessOn is a free online drawing tool that supports the creation of mind maps, flow charts, swimlane diagrams, network topology diagrams, fishbone diagrams, UML and other graphics.

    One stop drawing tool
    Best alternatives are draw.io icondraw.ioandPencil Project iconPencil Project89 alternatives
  11. High performance and scalable visual modeling tool for the planning, design and construction of business architectures, software and systems. With customers based in all industries, Sparx Systems is a leading vendor of innovative modeling solutions.

    Enterprise Architecture Frameworks
    Best alternatives are Visual Paradigm iconVisual Paradigm50 alternatives
  12. Modelio icon
     18 likes

    Modelio is an open source modeling tool supporting natively UML, BPMN and model exchange with XMI. It allows to draw all UML2 diagrams and specific diagrams for business process modeling. It is easy and powerful with the capacity to add new functionalities to the application.

    Class diagrams
    Best alternatives are yEd Graph Editor iconyEd Graph EditorandUmbrello iconUmbrello33 alternatives
  13. Gaphor icon
     4 likes

    Gaphor is a WYSIWYG (What You See Is What You Get) UML and SysML modeling environment easy to use that will help you create your applications.

    Gaphor screenshot 1
    Best alternatives are Excalidraw iconExcalidraw13 alternatives
  14. Cacoo icon
     75 likes

    Cacoo is a user-friendly online diagramming tool that allows you to create a variety of diagrams such as wireframes, flowcharts, UML diagrams, network diagrams, mindmaps, sitemaps, database diagrams, and more.

    Cacoo screenshot 1
    Best alternatives are draw.io icondraw.io82 alternatives
  15. Creately icon
     109 likes

    Online diagramming platform supporting real-time collaboration, 50+ diagram types, smart objects, templates, revision control, and PDF export features.

    Creately screenshot 1
    Best alternatives are draw.io icondraw.io78 alternatives