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Coggle alternatives · Whiteboards

Open-source alternatives to Coggle

Coggle 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.

Coggle has a free plan. Paid plans start at $5 per month. 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 Coggle

  1. draw.io

    Free diagram editor that saves files to storage you choose

    • draw.io is free. Coggle starts at $5 per month.
    • Only draw.io lists macOS, Windows and Linux apps.
    • draw.io is open source, according to its own site.
    • draw.io also covers templates.
    draw.io pricing and details

  2. Excalidraw

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

    • Excalidraw starts at $6 per user / month, billed annually. Coggle starts at $5 per month.
    • Excalidraw is open source and end-to-end encrypted, according to its own site.
    • Excalidraw also covers whiteboard.
    • Coggle also covers Markdown and mind mapping.
    Excalidraw pricing and details

  3. PlantUML

    Draw UML and other diagrams from plain-text descriptions

    • PlantUML is free. Coggle starts at $5 per month.
    • Only PlantUML lists a browser extension.
    • PlantUML is open source, according to its own site.
    • Coggle is self-hostable, according to its own site.
    PlantUML pricing and details

  4. Flowchart Fun

    Text-based flowchart maker that draws diagrams as you type

    • Flowchart Fun starts at $2 per month (billing basis not stated). Coggle starts at $5 per month.
    • Flowchart Fun is open source, according to its own site.
    • Coggle is self-hostable, according to its own site.
    • Coggle also covers Markdown.
    Flowchart Fun pricing and details

  5. Freeplane

    Free, open source mind mapping app for the desktop

    • Freeplane is free. Coggle starts at $5 per month.
    • Only Freeplane lists Windows, macOS and Linux apps.
    • Only Coggle lists a web app.
    • Freeplane is open source, according to its own site.
    Freeplane pricing and details

  6. OpenBoard

    Free open-source interactive whiteboard software for classrooms

    • OpenBoard is free. Coggle starts at $5 per month.
    • Only OpenBoard lists Windows, macOS and Linux apps.
    • Only Coggle 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 Coggle?

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

Is Coggle open source?

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