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Microsoft Whiteboard alternatives · Whiteboards

Open-source alternatives to Microsoft Whiteboard

Microsoft Whiteboard is not described as open source on its own site. 6 of the 61 other whiteboard and mind map tools in this directory are open source, according to their own sites.

Microsoft Whiteboard is free to use. All of them are free or have a free plan.

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

How each one differs from Microsoft Whiteboard

  1. Excalidraw

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

    • Excalidraw starts at $6 per user / month, billed annually. Microsoft Whiteboard is free.
    • Only Microsoft Whiteboard lists Windows, iOS and Android apps.
    • Excalidraw is open source, self-hostable and end-to-end encrypted, according to its own site.
    • Excalidraw also covers diagrams.
    Excalidraw vs Microsoft WhiteboardExcalidraw pricing and details

  2. OpenBoard

    Free open-source interactive whiteboard software for classrooms

    • OpenBoard is free. Microsoft Whiteboard is free.
    • Only OpenBoard lists macOS and Linux apps.
    • Only Microsoft Whiteboard lists a web app.
    • Only Microsoft Whiteboard lists iOS and Android apps.
    OpenBoard vs Microsoft WhiteboardOpenBoard pricing and details

  3. draw.io

    Free diagram editor that saves files to storage you choose

    • draw.io is free. Microsoft Whiteboard is free.
    • Only draw.io lists macOS and Linux apps.
    • Only Microsoft Whiteboard lists iOS and Android apps.
    • draw.io is open source and self-hostable, according to its own site.
    draw.io pricing and details

  4. Freeplane

    Free, open source mind mapping app for the desktop

    • Freeplane is free. Microsoft Whiteboard is free.
    • Only Freeplane lists macOS and Linux apps.
    • Only Microsoft Whiteboard lists a web app.
    • Only Microsoft Whiteboard lists iOS and Android apps.
    Freeplane 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). Microsoft Whiteboard is free.
    • Only Microsoft Whiteboard lists Windows, iOS and Android apps.
    • Flowchart Fun is open source, according to its own site.
    • Flowchart Fun also covers mind mapping and diagrams.
    Flowchart Fun pricing and details

  6. PlantUML

    Draw UML and other diagrams from plain-text descriptions

    • PlantUML is free. Microsoft Whiteboard is free.
    • Only PlantUML lists a browser extension.
    • Only Microsoft Whiteboard lists Windows, iOS and Android apps.
    • PlantUML is open source, according to its own site.
    PlantUML pricing and details

Common questions

Is there an open-source alternative to Microsoft Whiteboard?

Yes. Excalidraw, OpenBoard, draw.io, Freeplane, Flowchart Fun and PlantUML are open source, according to their own sites.

Is Microsoft Whiteboard open source?

Microsoft Whiteboard is not described as open source on its own site. The listing was checked on Oct 5, 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 12, 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 Microsoft Whiteboard: the alternatives its listing names first, then the tools that share the most features with it.