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SimpleMind alternatives · Whiteboards

Open-source alternatives to SimpleMind

SimpleMind 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.

SimpleMind has a free plan. Paid plans start at $10.99 one-time (iPhone and iPad); $29.99 for Mac or Windows. 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 SimpleMind

  1. Freeplane

    Free, open source mind mapping app for the desktop

    • Freeplane is free. SimpleMind starts at $10.99 one-time (iPhone and iPad); $29.99 for Mac or Windows.
    • Only Freeplane lists a Linux app.
    • Only SimpleMind lists iOS and Android apps.
    • Freeplane is open source, according to its own site.
    Freeplane vs SimpleMindFreeplane pricing and details

  2. PlantUML

    Draw UML and other diagrams from plain-text descriptions

    • PlantUML is free. SimpleMind starts at $10.99 one-time (iPhone and iPad); $29.99 for Mac or Windows.
    • Only PlantUML lists a web app.
    • Only PlantUML lists a browser extension.
    • Only SimpleMind lists macOS, Windows, iOS and Android apps.
    PlantUML pricing and details

  3. Flowchart Fun

    Text-based flowchart maker that draws diagrams as you type

    • Flowchart Fun starts at $2 per month (billing basis not stated). SimpleMind starts at $10.99 one-time (iPhone and iPad); $29.99 for Mac or Windows.
    • Only Flowchart Fun lists a web app.
    • Only SimpleMind lists macOS, Windows, iOS and Android apps.
    • Flowchart Fun is open source, according to its own site.
    Flowchart Fun pricing and details

  4. draw.io

    Free diagram editor that saves files to storage you choose

    • draw.io is free. SimpleMind starts at $10.99 one-time (iPhone and iPad); $29.99 for Mac or Windows.
    • Only draw.io lists a web app.
    • Only draw.io lists a Linux app.
    • Only SimpleMind lists iOS and Android apps.
    draw.io pricing and details

  5. Excalidraw

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

    • Excalidraw starts at $6 per user / month, billed annually. SimpleMind starts at $10.99 one-time (iPhone and iPad); $29.99 for Mac or Windows.
    • Only Excalidraw lists a web app.
    • Only SimpleMind lists macOS, Windows, iOS and Android apps.
    • Excalidraw is open source, self-hostable and end-to-end encrypted, according to its own site.
    Excalidraw pricing and details

  6. OpenBoard

    Free open-source interactive whiteboard software for classrooms

    • OpenBoard is free. SimpleMind starts at $10.99 one-time (iPhone and iPad); $29.99 for Mac or Windows.
    • Only OpenBoard lists a Linux app.
    • Only SimpleMind lists iOS and Android apps.
    • OpenBoard is open source, according to its own site.
    OpenBoard pricing and details

Common questions

Is there an open-source alternative to SimpleMind?

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

Is SimpleMind open source?

SimpleMind is not described as open source on its own site. The listing was checked on Oct 6, 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 SimpleMind: the alternatives its listing names first, then the tools that share the most features with it.