Asciidoctor.js extension to convert diagrams to images using Kroki!
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Diagram GitHub Repositories (2026) · Open Source Tools
Discover the best Diagram open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.
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27 matching projects · updated Nov 13, 2026
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Macro plugin to embed draw.io diagrams into Redmine wiki pages
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A Notepad++ plugin to generate, view and export PlantUML diagrams
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A number of small tools for generating and manipulating diagrams, mostly based around Graphviz
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Generate evidence-grounded interactive software diagrams with offline HTML, SVG and PNG export.
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UML Modeling Editor
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Arkdraw is an open-source diagramming app for creating flowcharts, UML, ER diagrams, network maps, wireframes, and mind maps with a built-in AI assistant that generates and edits diagrams from natural-language prompts.
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