Alternatives to Classbuilder for all platforms with any license





Web / Online



Other Platforms

  • Lucidchart icon


    Online diagram and flowchart software that supports Microsoft Visio import and can work on any operating system.

    Freemium Mac Windows Linux Web / Cloud iPad Chrome ... Google Apps

  • PlantUML icon


    PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams. The generator can be run anywhere within...

    Open Source Mac Windows Linux Web / Cloud Android Chrome OS

  • ArgoUML icon


    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...

    Open Source Mac Windows Linux

  • StarUML icon


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

    Commercial Mac Windows Linux

  • UMLet icon


    UMLet is an open-source UML tool with a simple user interface: draw UML diagrams fast, export diagrams to eps, pdf, jpg, svg, and...

    Open Source Mac Windows Linux

  • Visual Paradigm for UML icon

    Visual Paradigm for UML

    Visual Paradigm for UML (VP-UML) is a UML design tool and UML CASE tool designed to aid software development. VP-UML supports key...

    Commercial Mac Windows Linux

  • Enterprise Architect icon

    Enterprise Architect

    Enterprise Architect is a collaborative modeling, design and management platform based on UML and related standards. Agile, intuitive...

    Commercial Windows

  • Umbrello icon


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

    Open Source Mac Linux

  • 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...

    Free Personal Windows

  • NClass icon


    NClass is a free tool to easily create UML class diagrams with full C# and Java language support. The user interface is designed to be...

    Open Source Windows Linux

  • 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...

    Free Windows Linux

  • ProcessOn icon


    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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  • 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....

    Open Source Mac Windows Linux

  • Papyrus UML icon

    Papyrus UML

    Graphical modelling open source UML2 tool based on Eclipse environment. Papyrus is aiming at providing an integrated and...

    Free Mac Windows Linux

  • WhiteStarUML icon


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

    Open Source Windows

  • jsUML2 icon


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

    Open Source Web / Cloud JavaScript

  • 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...

    Open Source Web / Cloud

  • yUML

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

    Free Web / Cloud

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  • GenMyModel icon


    GenMyModel is an online modeling plateforme for UML, BPMN2, Database, Flowchart and more. It supports realtime collaboration...

    Freemium Mac Windows Linux Web / Cloud Chrome OS

  • UMLGraph icon


    UMLGraph allows the declarative specification and drawing of UML class and sequence diagrams. The current features are part of an...

    Open Source Mac Windows Linux

  • MockupTiger

    MockupTiger is a web based application that helps you to build fluid wireframes, mockups or prototypes for your next web application...

    Commercial Windows Linux Web / Cloud Android iPhone iPad

  • PlantText icon


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

    Free Web / Cloud

  • Modeliosoft icon


    Whether you are a Business Architect, System Architect, Developer, Analyst or Designer, Modeliosoft meets your needs through its high...

    Freemium Windows Linux

  • Eclipse Mode Development Tools

    The Model Development Tools (MDT) project focuses on big "M" modeling within the Modeling project. Its purpose is twofold: ...

    Open Source Mac Windows Linux

  • BOUML icon


    BOUML is a free UML 2 tool box (under development) allowing you to specify and generate code in C++, Java, Idl, Php and Python. ...

    Commercial Mac Windows Linux

  • Poseidon for UML icon

    Poseidon for UML Discontinued

    Dont lose the advantage of clarity and simplicity to an overly complicated tool - the Poseidon for UML software line lets you get down...

    Free Mac Windows Linux

  • UModel icon


    UModel is a UML (Unified Modeling Language) software modeling tool from Altova, the creator of XMLSpy. UModel supports all 14 UML 2...

    Commercial Windows

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