Mermaid AlternativesOnly apps categorised as UML Modeling Tools

The best UML Modeling alternative to Mermaid is yEd Graph Editor, which is free. If that doesn't suit you, our users have ranked more than 25 alternatives to Mermaid and ten of them are UML Modeling Tools so hopefully you can find a suitable replacement. Other interesting UML Modeling Tool alternatives to Mermaid are PlantUML, StarUML, Visual Paradigm and Umbrello.

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Mermaid alternatives are mainly UML Modeling Tools, but if you're looking for Diagram Editors or Mind Mapping Tools you can filter on that. Other popular filters include Diagram Editor. These are just examples - use the filter bar below to find more specific alternatives to Mermaid.
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Alternatives list

  1. yEd Graph Editor icon

    yEd Graph Editor

     440 likes
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    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...

    117 yEd Graph Editor alternatives

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • BSD
    yEd Graph Editor screenshot 1
     

    • yEd Graph Editor is the most popular Web-based, Windows, Mac & Linux alternative to Mermaid.

    • yEd Graph Editor is the most popular free alternative to Mermaid.

    • yEd Graph Editor is Free and ProprietaryMermaid is Free and Open Source
  2. PlantUML icon

    PlantUML

     119 likes
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    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.

    115 PlantUML alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • Chrome OS
    Common PlantUML JAR GUI application that will render text file into image.
     
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    1
    Comments about PlantUML as an Alternative to Mermaid
    Maxim Kamalov
    Positive
    0

    Both can be integrated into markdown files.

    Mermaid Icon
    PlantUML icon

    • PlantUML is the most popular Android alternative to Mermaid.

    • PlantUML is the most popular Open Source alternative to Mermaid.

    • PlantUML is Free and Open SourceMermaid is also Free and Open Source
  4. StarUML icon

    StarUML

     41 likes
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    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...

    57 StarUML alternatives

    Cost / License

    • Pay once
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    StarUML screenshot 1
     

    • StarUML is the most popular commercial alternative to Mermaid.

    • StarUML is Paid and ProprietaryMermaid is Free and Open Source
  5. Visual Paradigm icon

    Visual Paradigm

     42 likes
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    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.

    81 Visual Paradigm alternatives

    Cost / License

    • Pay once or Subscription
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    Visual Paradigm screenshot 1
     
  6. Umbrello icon

    Umbrello

     40 likes
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    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.

    52 Umbrello alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Windows
    • Linux
    • Snapcraft
    • Flathub
    • Flatpak
    Umbrello screenshot 1
     
  7. PlantText icon

    PlantText

     6 likes
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    The PlantText tool is an online tool for quickly creating UML (Unified Modeling Language) diagrams. Unlike most tools, PlantText can build diagrams without the use of a mouse because it is based on PlantUML markup language.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Online
    • PlantUML
    PlantText screenshot 1
     
  9. Diagramly icon

    Diagramly

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    Diagramly is an innovative tool that uses AI to convert text descriptions or images into editable diagram code. It supports popular formats like Mermaid and ZenUML, allowing users to easily create and maintain professional diagrams.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Online
    Diagramly screenshot 1
     

  10. yUML

     2 likes
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    to model applications.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Online
     
  11. nomnoml icon

    nomnoml

     1 like
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    A tool for drawing UML diagrams based on a simple syntax.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    nomnoml screenshot 1
     
  12. Mermaid.js to SVG Converter icon

    Mermaid.js to SVG Converter

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    While coding with AI assist, I noticed bigger projects need something more rigid as context so the AI coder doesn't stray away when I try to add new features. You know, to keeps its memory fresh and not change the stuff that already works.

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Online
    Mermaid.js to SVG Converter screenshot 1
     
10 of 10 Mermaid alternatives