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PlantUML In-Place Preview

ExtensionDeveloper Tools39 users
Item media 1 (screenshot) for PlantUML In-Place Preview

Overview

Renders PlantUML code blocks in place, entirely in your browser.

PlantUML In-Place Preview renders PlantUML code blocks as diagrams on the page. Rendering runs entirely in the browser. No PlantUML server is contacted, so diagram source never leaves your machine. The extension stores no user data. It is a maintained fork of Pegmatite. The store name was Pegmatite-gitbucket through 2.0.0. From 2.0.1 the name is PlantUML In-Place Preview. The extension ID is unchanged, so existing installs keep working after update. It renders a code block when the language is uml, puml, or plantuml, and the source starts with @start. On some sites, a missing @startuml is completed for you. Hover the diagram to show two icons. One toggles between the source and the rendered diagram. The other downloads the diagram as an SVG file, always in the light theme. Source: https://github.com/Hondarer/pegmatite License: Apache License 2.0 https://github.com/Hondarer/pegmatite/blob/develop/LICENSE The packaged extension also bundles @plantuml/core (MIT; PlantUML by Arnaud Roques, compiled to JavaScript) and Viz.js 3.24.0 (MIT; Michael Daines). Viz.js includes Graphviz 14.1.1 (Eclipse Public License 1.0) and Expat 2.7.3 (MIT) in object code form. Full license texts ship in the extension package as LICENSE, LICENSE.plantuml-core, LICENSE.viz-js, LICENSE.graphviz, and LICENSE.expat. Attribution is in NOTICE: https://github.com/Hondarer/pegmatite/blob/develop/NOTICE

Details

  • Version
    2.0.2
  • Updated
    August 18, 2026
  • Offered by
    Tetsuo Honda
  • Size
    1.96MiB
  • Languages
    English
  • Developer
    Email
    t-honda@hondarer-soft.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

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The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site

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