Open Source Web-based Microsoft Visio Alternatives

Microsoft Visio is not available as a web app but there are plenty of alternatives that runs in the browser with similar functionality. The best open source Online alternative is draw.io. If that doesn't suit you, our users have ranked more than 100 alternatives to Microsoft Visio and 13 are open source and available as a web app so hopefully you can find a suitable replacement. Other interesting open source Online alternatives to Microsoft Visio are Excalidraw, FossFLOW, PlantUML and quiver diagram editor.

filter to find the best alternatives

Microsoft Visio alternatives are mainly Diagram Editors, but if you're looking for Mind Mapping Tools or UML Modeling Tools you can filter on that. Other popular filters include Open Source, Free, Linux, Android + Mind Mapping, Android, Diagram Editor and Android Tablet. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Microsoft Visio.
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Alternatives list

  1. draw.io icon

    draw.io

     1025 likes

    Feature-rich diagram editor offering privacy-focused, ad-free experience with real-time collaboration, offline usage, dark mode, and cloud storage support. No registration required and compatible with various diagram formats, it excels in simplicity by not tracking user data.

    142 draw.io alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Chrome OS
    • Notion
    • Self-Hosted
    • Nextcloud
    • Microsoft SharePoint
    • Flathub
    • Microsoft OneDrive
    • PortableApps.com
    • Google Drive
    • Google Docs
    • Microsoft Teams
    • Google Slides
    • Flatpak
    • Google Sheets
    Use the diagram editor in dark mode. Go to app.diagrams.net/?splash=0&ui=dark
     
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  2. Excalidraw icon

    Excalidraw

     109 likes

    Excalidraw is an open-source whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them. Available directly online as a web app and also through CodeSandbox to easily see how the code works, and the app is available for self-hosting.

    91 Excalidraw alternatives

    Cost / License

    • Freemium
    • Open Source (MIT)

    Application types

    Platforms

    • Online
    • Self-Hosted
    • Cloudron
    Excalidraw screenshot 1
     
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    1
  4. FossFLOW icon

    FossFLOW

     19 likes

    Open-source PWA for isometric 3D diagramming with offline use, no sign-in, React and Isoflow codebase, auto-saving, privacy-focused local data, import/export as JSON, Docker optional storage, multilingual support, available on Mac and Linux.

    26 FossFLOW alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Docker
    FossFLOW screenshot 1
     
  5. PlantUML icon

    PlantUML

     120 likes

    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.

    118 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.
     
  6. quiver diagram editor icon

    quiver diagram editor

     10 likes

    Efficient web-based tool for constructing high-quality commutative diagrams. Offers LaTeX export with embedded links, intuitive interface supporting both mouse and keyboard inputs, and features like multiple selections, macro support, and smart label alignment.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Online
    quiver diagram editor screenshot 1
     
  7. Graphviz icon

    Graphviz

     74 likes

    Graphviz is open source graph visualization software. Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks. It has important applications in networking, bioinformatics, software engineering, database and web design...

    57 Graphviz alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    Graphviz screenshot 1
     
  9. Wireflow icon

    Wireflow

     22 likes

    Feature-rich, open-source Wireflow offers a collaborative platform for online creation of complex user flow prototypes. Ideal for team work in UI design, wireframing, and mind mapping, promoting idea sharing in real-time environment aided by modern whiteboard features.

    Cost / License

    • Free
    • Open Source (MIT)

    Application types

    Platforms

    • Online
    • Self-Hosted
    Wireflow screenshot 1
     
  10. Kroki icon

    Kroki

     7 likes

    Creates diagrams from textual descriptions! It provides a unified API with support for BlockDiag, BPMN, Bytefield, C4 (with PlantUML), Ditaa, Erd, GraphViz, Mermaid, Nomnoml, PlantUML, SvgBob, UMLet, Vega, Vega-Lite, WaveDrom.

    26 Kroki alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application types

    Platforms

    • Online
    • Self-Hosted
    Kroki screenshot 1
     
  11. PDDON icon

    PDDON

     5 likes

    A daily drawing tool that supports low code for learning or office use. It can be used for flowchart, mind map, UML diagram, ER diagram, network topology diagram, BPMN, Venn diagram, database model diagram, whiteboard drawing, infinite canvas, and more.

    Cost / License

    • Free Personal
    • Open Source (MIT)

    Application types

    Alerts

    • Warning

    Platforms

    • Windows
    • Mac
    • Linux
    • Online
    home page
     
  12. Penrose icon

    Penrose

     5 likes

    Penrose is a platform that enables people to create beautiful diagrams just by typing mathematical notation in plain text. The goal is to make it easy for non-experts to create and explore high-quality diagrams and provide deeper insight into challenging technical concepts.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Online
    • BSD
    • Linux
    • Mac
    • Windows
    Penrose screenshot 1
     
  13. Diagramo icon

    Diagramo

     20 likes

    Diagramo is an online flowchart software

    • diagrams (create, edit and share)
    • organization charts (create, edit and share)
    • network diagrams (create, edit and share)
    • graphs (create, edit and share).

    Cost / License

    • Free
    • Open Source

    Platforms

    • Online
    Diagramo screenshot 1
     
  14. PathVisio icon

    PathVisio

     8 likes

    PathVisio is a free open-source pathway analysis and drawing software that allows drawing, editing and analysing biological pathways.

    70 PathVisio alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    PathVisio screenshot 1
     
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