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Browse free open source UML tools and projects for Windows below. Use the toggles on the left to filter open source UML tools by OS, license, language, programming language, and project status.

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  • 1
    PlantUML QEditor

    PlantUML QEditor

    A PlantUML editor written in Qt4

    A simple editor for PlantUML. Requires PlantUML (and its dependencies, java and graphviz/dot). Some features: * update the diagram while editing * code assistant to insert ready-made code snipets * written in Qt4, so it should run on all platforms supported by Qt4 and PlantUML * option to cache the PlantUML output to speed redo, undo and loading from disk * can be used as a PlantUML viewer (see the wiki for more info)
    Downloads: 17 This Week
    Last Update:
    See Project
  • 2
    pued

    pued

    PUed - PlantUML Editor

    PUed is a PlantUML script editor able to generate UML diagram images by means of the PlantUML capabilities. In order to exploit all PlantUML features the Graphviz platform shall be installed.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 3
    This project will allow a .NET(C#) developer to have a component that will interact with OpenXml file. For example *.docx file with are used by Office 2007. So that these files can be changed easily within code.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 4
    An alternative to the page-chapter-paragraph documentation approach. LivCos allows you to teach the computer the structure of your content, so it can support you in various contexts. Pages will be generated as one of many views on the actual content.
    Downloads: 0 This Week
    Last Update:
    See Project
  • The top-rated AI recruiting platform for faster, smarter hiring. Icon
    The top-rated AI recruiting platform for faster, smarter hiring.

    Humanly is an AI recruiting platform that automates candidate conversations, screening, and scheduling.

    Humanly is an AI-first recruiting platform that helps talent teams hire in days, not months—without adding headcount. Our intuitive CRM pairs with powerful agentic AI to engage and screen every candidate instantly, surfacing top talent fast. Built on insights from over 4 million candidate interactions, Humanly delivers speed, structure, and consistency at scale—engaging 100% of interested candidates and driving pipeline growth through targeted outreach and smart re-engagement. We integrate seamlessly with all major ATSs to reduce manual work, improve data flow, and enhance recruiter efficiency and candidate experience. Independent audits ensure our AI remains fair and bias-free, so you can hire confidently.
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  • 5
    Metaquokka is a highly configurable xml editor, currently available as Gridsphere portlet. Besides the default format, there is suppoert for ESysXML, a simulation description scheme for a geodynamics framework. Supports Generic Mapping Tools rudimentary.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    The SBeaVeR editor is an Eclipse based plugin that allows business modellers and analysts to create fact-oriented business models and rules based on OMG's SBVR standard. It is part of the DBE project.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    This project starts to create an open tool for creating, manipulating and visualizing DTDs (in a later state it should work also with other other specification languages such as XML Schema and RELAX NG).
    Downloads: 0 This Week
    Last Update:
    See Project
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