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PlantUML alternatives · Whiteboards

Self-hosted alternatives to PlantUML

The PlantUML listing does not say it can be self-hosted. 7 of the 98 other whiteboard and mind map tools in this directory can be self-hosted, according to their own sites.

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

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

How each one differs from PlantUML

  1. draw.io

    Free diagram editor that saves files to storage you choose

    • draw.io is free. PlantUML is free.
    • Only draw.io lists macOS, Windows and Linux apps.
    • Only PlantUML lists a browser extension.
    • draw.io is self-hostable, according to its own site.
    draw.io vs PlantUMLdraw.io pricing and details

  2. 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. PlantUML is free.
    • Only PlantUML lists a browser extension.
    • Structurizr is self-hostable, according to its own site.
    • PlantUML also covers Gantt & timelines and mind mapping.
    Structurizr vs PlantUMLStructurizr pricing and details

  3. Excalidraw

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

    • Excalidraw starts at $6 per user / month, billed annually. PlantUML is free.
    • Only PlantUML lists a browser extension.
    • Excalidraw is self-hostable and end-to-end encrypted, according to its own site.
    • Excalidraw also covers whiteboard.
    Excalidraw pricing and details

  4. Creately

    Visual workspace for diagrams, whiteboards and planning

    • Creately starts at $4 per editor / month, billed annually ($48 a year). PlantUML is free.
    • Only PlantUML lists a browser extension.
    • Creately is self-hostable, according to its own site.
    • PlantUML is open source, according to its own site.
    Creately pricing and details

  5. Coggle

    Collaborative mind maps and flowcharts in the browser

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

  6. WiseMapping

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

    • WiseMapping is free. PlantUML is free.
    • Only WiseMapping lists macOS, Windows and Linux apps.
    • Only PlantUML lists a browser extension.
    • WiseMapping is self-hostable, according to its own site.
    WiseMapping pricing and details

  7. WebSequenceDiagrams

    Text-to-diagram sequence diagram maker with its own layout engine

    • WebSequenceDiagrams starts at $10 per month, billed annually ($15 billed monthly). PlantUML is free.
    • Only PlantUML lists a browser extension.
    • WebSequenceDiagrams is self-hostable, according to its own site.
    • PlantUML is open source, according to its own site.
    WebSequenceDiagrams pricing and details

Common questions

Is there a self-hosted alternative to PlantUML?

Yes. draw.io, Structurizr, Excalidraw, Creately, Coggle, WiseMapping and WebSequenceDiagrams can be self-hosted, according to their own sites.

Can PlantUML be self-hosted?

The PlantUML listing does not say it can be self-hosted. 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 PlantUML: the alternatives its listing names first, then the tools that share the most features with it.