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
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Details
- Version2.0.2
- UpdatedAugust 18, 2026
- Offered byTetsuo Honda
- Size1.96MiB
- LanguagesEnglish
- Developer
Email
t-honda@hondarer-soft.com - Non-traderThis 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
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