Alternatives to NClass for all platforms with any license

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  • PlantUML icon

    PlantUML

    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...

    Open Source Mac Windows Linux Web / Cloud Android Chrome OS

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  • ArgoUML icon

    ArgoUML

    ArgoUML is an open source UML modeling tool and includes support for all standard UML 1.4 diagrams. It runs on any Java platform and is available in ten languages.

    Open Source Mac Windows Linux

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  • StarUML icon

    StarUML

    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...

    Commercial Mac Windows Linux

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  • 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. UMLet is a UML tool...

    Open Source Mac Windows Linux

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  • Umbrello icon

    Umbrello

    Umbrello UML Modeller is a Unified Modelling Language diagram programme for KDE. UML allows you to create diagrams of software and other systems in a standard format.

    Open Source Mac Linux

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  • Enterprise Architect icon

    Enterprise Architect

    Enterprise Architect is a collaborative modeling, design and management platform based on UML and related standards. Agile, intuitive and extensible with fully integrated, powerful domain specific high-end features at a fraction of...

    Commercial Windows

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  • 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

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  • 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 development process with Astah's innovative modeling approach.

    Free Windows Linux

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  • ProcessOn icon

    ProcessOn

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

    Free Mac Windows Linux Web / Cloud Chrome OS

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  • 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 and fixing bugs and adding new features. Features ...

    Open Source Windows

  • 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, students, teachers, and authors who need to produce simple UML...

    Open Source Mac Windows Linux

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  • Papyrus UML icon

    Papyrus UML

    Graphical modelling open source UML2 tool based on Eclipse environment. Papyrus is aiming at providing an integrated and user-consumable environment for editing any kind of EMF model and particularly supporting UML and related...

    Free Mac Windows Linux

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  • System Designer icon

    System Designer

    Integrated development environment that can help you define models for your applications in a streamlined manner and test the results.

    Open Source Mac Web / Cloud Android iPhone Android Tablet iPad ... GitHub

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  • 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, some features and developments will not be neccessarily available...

    Open Source Web / Cloud JavaScript

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  • Chrons Web Modeler icon

    Chrons Web Modeler

    the Chronos Web Modeller is a collaborative tool for the creation of UML models with reporting, code and document generator . CWM offer an holistic MDA/MDD approach to projects. It allows to create Web (PHP, J2EE), Desktop (c#) and...

    Open Source Web / Cloud

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  • Classbuilder icon

    Classbuilder

    ClassBuilder is freeware CASE tool targeted at the C++ developer, running on Win2K-XP. It lets you create, manipulate and navigate classes, class relations, class members and class methods at a high level of abstraction through a...

    Open Source Windows

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  • yUML

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

    Free Web / Cloud

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  • 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 support for all types UML diagrams.

    Open Source Mac Windows Linux

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  • TopCoder UML icon

    TopCoder UML

    TopCoder UML Tool is an easy to use, consistent modeling tool for use in Design and Development competitions. The new tool was built to model sequence, class, use case, and activity diagrams. On top of that, all those elements can...

    Open Source Mac Windows Linux

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  • PlantText icon

    PlantText

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

    Free Web / Cloud

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  • Modeliosoft icon

    Modeliosoft

    Whether you are a Business Architect, System Architect, Developer, Analyst or Designer, Modeliosoft meets your needs through its high quality solutions for modeling, and report, architecture or code generation. Modeliosoft Solutions...

    Freemium Windows Linux

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  • BOUML icon

    BOUML

    BOUML is a free UML 2 tool box (under development) allowing you to specify and generate code in C++, Java, Idl, Php and Python. BOUML runs under Unix/Linux/Solaris, MacOS X(Power PC and Intel) and Windows. BOUML is very fast and...

    Commercial Mac Windows Linux

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  • Eclipse Mode Development Tools

    The Model Development Tools (MDT) project focuses on big "M" modeling within the Modeling project. Its purpose is twofold: To provide an implementation of industry standard metamodels. To provide exemplary tools...

    Open Source Mac Windows Linux

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  • 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 your development environment. Powerful features such as round...

    Free Mac Windows Linux

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    • Discontinued Homepage not available.
  • ckwnc

    ckwnc is a uml sequence diagram creation tool that uses an intuitive c-style language to automatically create uml diagrams that can be saved as an image or embedded directly into other pages

    Open Source Linux Web / Cloud

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