The Best 26 TopCoder UML Alternatives

  • StarUML icon

    StarUML

    StarUML is a program to develop fast, flexible, extensible, featureful, and freely-available UML/MDA platform running on Win32 platform.

    Commercial Mac OS X Windows Linux

  • UMLet icon

    UMLet

    UMLet is an open-source UML tool with a simple user interface: draw UML diagrams fast, export diagrams to eps, pdf, jpg, svg, and clipboard, share diagrams using Eclipse, and create new, custom UML elements.

    Free Open Source Windows

    Drag n drop Content Templates
  • Software Ideas Modeler icon

    Software Ideas Modeler

    Lightweight, powerful, easy to use, UML tool Software Ideas Modeler is a lightweight and powerful CASE tool. It supports UML 2.2 diagrams and a lot of other ones. Software Ideas Modeler is freeware (for non-commercial use).

    Free Personal Windows

  • Modelio icon

    Modelio

    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.

    Free Open Source Windows Linux Eclipse

    Portable SysML
  • ProcessOn icon

    ProcessOn

    Free html-5 based on-line diagrams design, an ideal tool for visual communication .

    Free Mac OS X Windows Linux Chrome OS Web

  • astah Community Edition icon

    astah Community Edition

    Astah Community is an add-on tool for your UML that is ready to use the instant you download it, allowing your UML to be quickly and easily enhanced, and refining your...

    Free Windows Linux

  • WhiteStarUML icon

    WhiteStarUML

    WhiteStarUML is a fork of StarUML with an intent to revive its Delphi code base by updating code to recent Delphi editions, reducing dependence on third party components...

    Free Open Source Windows

  • Papyrus UML icon

    Papyrus UML

    graphical modelling open source uml2 tool based on eclipse environment.

    Free Open Source Mac OS X Windows Linux Eclipse

  • Violet UML Editor icon

    Violet UML Editor

    Violet is a UML editor with these benefits: Very easy to learn and use. Draws nice-looking diagrams. Completely free. Cross-platform. Violet is intended for developers...

    Free Open Source Mac OS X Windows Linux

  • jsUML2 icon

    jsUML2

    A lightweight HTML5/javascript library for UML 2 diagramming. Alpha software. This project is in progress. Many functionalities are ready to be used. Nevertheless...

    Free Open Source Web JavaScript

  • UMLGraph icon

    UMLGraph

    UMLGraph allows the declarative specification and drawing of UML class and sequence diagrams. The current features are part of an ongoing effort aiming to provide...

    Free Open Source Mac OS X Windows Linux

  • PlantText icon

    PlantText

    PlantUML based on-line UML editor (text to UML) with optional Google registration and document saving.

    Free Web

  • ObjectAid icon

    ObjectAid

    The ObjectAid UML Explorer is an agile and lightweight code visualization tool for the Eclipse IDE. It shows your Java source code and libraries in live UML class and...

    Freemium Mac OS X Windows Linux

  • yUML icon

    yUML

    Create and share simple UML diagrams. Beta software. Supported diagram types: class, use case

    Free Web

  • Poseidon for UML icon

    Poseidon for UML

    Dont lose the advantage of clarity and simplicity to an overly complicated tool - the Poseidon for UML software line lets you get down to work without entanglements in...

    Free Mac OS X Windows Linux