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MindMup alternatives · Whiteboards

Open-source alternatives to MindMup

MindMup is not described as open source on its own site. 12 of the 98 other whiteboard and mind map tools in this directory are open source, according to their own sites.

MindMup has a free plan. Paid plans start at $6 per month, billed annually (Personal). All of them are free or have a free plan.

12 tools · Listings checked up to Nov 13, 2026 · Where the facts come from

How each one differs from MindMup

  1. Markmap

    Free open-source tool that turns Markdown outlines into mind maps

    • Markmap is free. MindMup starts at $6 per month, billed annually (Personal).
    • Markmap is open source, according to its own site.
    • Markmap also covers Markdown.
    • MindMup also covers notes and presentations.
    Markmap vs MindMupMarkmap pricing and details

  2. draw.io

    Free diagram editor that saves files to storage you choose

    • draw.io is free. MindMup starts at $6 per month, billed annually (Personal).
    • Only draw.io lists macOS, Windows and Linux apps.
    • draw.io is open source and self-hostable, according to its own site.
    • draw.io also covers templates.
    draw.io pricing and details

  3. Excalidraw

    Open-source whiteboard for hand-drawn style sketches and diagrams

    • Excalidraw starts at $6 per user / month, billed annually. MindMup starts at $6 per month, billed annually (Personal).
    • Excalidraw is open source, self-hostable and end-to-end encrypted, according to its own site.
    • Excalidraw also covers whiteboard.
    • MindMup also covers notes, mind mapping and presentations.
    Excalidraw pricing and details

  4. PlantUML

    Draw UML and other diagrams from plain-text descriptions

    • PlantUML is free. MindMup starts at $6 per month, billed annually (Personal).
    • Only PlantUML lists a browser extension.
    • PlantUML is open source, according to its own site.
    • PlantUML also covers Gantt & timelines.
    PlantUML pricing and details

  5. Flowchart Fun

    Text-based flowchart maker that draws diagrams as you type

    • Flowchart Fun starts at $2 per month (billing basis not stated). MindMup starts at $6 per month, billed annually (Personal).
    • Flowchart Fun is open source, according to its own site.
    • MindMup also covers notes and presentations.
    Flowchart Fun pricing and details

  6. Freeplane

    Free, open source mind mapping app for the desktop

    • Freeplane is free. MindMup starts at $6 per month, billed annually (Personal).
    • Only Freeplane lists Windows, macOS and Linux apps.
    • Only MindMup lists a web app.
    • Freeplane is open source, according to its own site.
    Freeplane pricing and details

  7. WiseMapping

    Free open-source online mind mapping with a self-hosted option

    • WiseMapping is free. MindMup starts at $6 per month, billed annually (Personal).
    • Only WiseMapping lists macOS, Windows and Linux apps.
    • WiseMapping is open source and self-hostable, according to its own site.
    • MindMup also covers notes, diagrams and presentations.
    WiseMapping pricing and details

  8. Structurizr

    Open-source models-as-code tool for C4 architecture diagrams

    • Structurizr starts at £300 per month for up to 20 unique users, per server installation. MindMup starts at $6 per month, billed annually (Personal).
    • Structurizr is open source and self-hostable, according to its own site.
    • MindMup also covers notes, mind mapping and presentations.
    Structurizr pricing and details

  9. Parabol

    Retrospectives, standups and sprint poker for agile teams

    • Parabol starts at $8 per active user / month. MindMup starts at $6 per month, billed annually (Personal).
    • Parabol is open source, according to its own site.
    • Parabol also covers templates and tasks.
    • MindMup also covers notes, mind mapping, diagrams and presentations.
    Parabol pricing and details

  10. Pencil Project

    Free open-source desktop tool for GUI mockups and diagrams

    • Pencil Project is free. MindMup starts at $6 per month, billed annually (Personal).
    • Only Pencil Project lists macOS, Windows and Linux apps.
    • Only MindMup lists a web app.
    • Pencil Project is open source, according to its own site.
    Pencil Project pricing and details

  11. nomnoml

    Text-to-UML diagram editor with a live preview

    • nomnoml is free. MindMup starts at $6 per month, billed annually (Personal).
    • nomnoml is open source, according to its own site.
    • MindMup also covers notes, mind mapping and presentations.
    nomnoml pricing and details

  12. OpenBoard

    Free open-source interactive whiteboard software for classrooms

    • OpenBoard is free. MindMup starts at $6 per month, billed annually (Personal).
    • Only OpenBoard lists Windows, macOS and Linux apps.
    • Only MindMup lists a web app.
    • OpenBoard is open source, according to its own site.
    OpenBoard pricing and details

Common questions

Is there an open-source alternative to MindMup?

Yes. Markmap, draw.io, Excalidraw, PlantUML, Flowchart Fun, Freeplane, WiseMapping, Structurizr and 4 more are open source, according to their own sites.

Is MindMup open source?

MindMup is not described as open source on its own site. The listing was checked on Nov 12, 2026 against the pages it cites.

When was this checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 13, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to MindMup: the alternatives its listing names first, then the tools that share the most features with it.