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Scapple alternatives · Whiteboards

Open-source alternatives to Scapple

Scapple 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.

Scapple is a paid product with a free trial, starting at $20.99 one-time, per platform (macOS 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 Scapple

  1. Freeplane

    Free, open source mind mapping app for the desktop

    • Freeplane is free. Scapple starts at $20.99 one-time, per platform (macOS or Windows).
    • Freeplane has a free plan. Scapple does not, though it has a free trial.
    • Only Freeplane lists a Linux app.
    • Freeplane is open source, according to its own site.
    Freeplane vs ScappleFreeplane pricing and details

  2. PlantUML

    Draw UML and other diagrams from plain-text descriptions

    • PlantUML is free. Scapple starts at $20.99 one-time, per platform (macOS or Windows).
    • PlantUML has a free plan. Scapple does not, though it has a free trial.
    • Only PlantUML lists a web app.
    • Only PlantUML lists a browser extension.
    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). Scapple starts at $20.99 one-time, per platform (macOS or Windows).
    • Flowchart Fun has a free plan. Scapple does not, though it has a free trial.
    • Only Flowchart Fun lists a web app.
    • Only Scapple lists macOS and Windows apps.
    Flowchart Fun pricing and details

  4. draw.io

    Free diagram editor that saves files to storage you choose

    • draw.io is free. Scapple starts at $20.99 one-time, per platform (macOS or Windows).
    • draw.io has a free plan. Scapple does not, though it has a free trial.
    • Only draw.io lists a web app.
    • Only draw.io lists a Linux app.
    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. Scapple starts at $20.99 one-time, per platform (macOS or Windows).
    • Excalidraw has a free plan. Scapple does not, though it has a free trial.
    • Only Excalidraw lists a web app.
    • Only Scapple lists macOS and Windows apps.
    Excalidraw pricing and details

  6. OpenBoard

    Free open-source interactive whiteboard software for classrooms

    • OpenBoard is free. Scapple starts at $20.99 one-time, per platform (macOS or Windows).
    • OpenBoard has a free plan. Scapple does not, though it has a free trial.
    • Only OpenBoard lists a Linux app.
    • OpenBoard is open source, according to its own site.
    OpenBoard pricing and details

Common questions

Is there an open-source alternative to Scapple?

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

Is Scapple open source?

Scapple 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 Scapple: the alternatives its listing names first, then the tools that share the most features with it.