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    microsoft

    microsoft/Ontology-Playground

    Free, open-source web app for learning about ontologies and Microsoft Fabric IQ. Explore a catalogue of pre-built ontologies, design your own visually, export as RDF/XML, and share interactive diagrams. Zero backend, fully static.

    web
    TypeScript
    MIT
    3.0K stars
    384 forks
    3.0K GitHub watchers
    Updated Oct 27, 2026
    View on GitHub

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    Where it stands

    Rank, growth pace and release cadence relative to everything GStars tracks.

    The project lists 29 contributors on GitHub.

    Gained 63% fewer stars in the last 90 days than in the 90 days before.

    Use Cases & Benefits

    • Provides a free, open-source web app for exploring, designing, and sharing ontologies with visual editing and RDF/XML export.
    • Enables ontology learning and creation entirely client-side with zero backend, supporting interactive graphs and seamless integration with Microsoft Fabric IQ.
    • Use for learning ontology concepts through structured courses and interactive quizzes in the Ontology School.
    • Use for visually designing and editing custom ontologies with live graph previews and export to RDF/XML or JSON formats.
    • Use for embedding interactive ontology viewers on any website via a lightweight JavaScript widget with dark/light theme support.

    Should you depend on it?

    License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.

    License

    MIT

    Permissive: commercial use, modification and redistribution are allowed with attribution.

    Community files

    • README: present
    • Contributing guide: present
    • Code of conduct: present

    Watch-outs

    • No GitHub releases; pin a commit or tag instead of a release.

    General guidance from repository metadata, not legal advice. How we score

    From the README

    Note: This project was developed with AI-assisted coding.

    A free, open-source web application for learning about ontologies and Microsoft Fabric IQ. Explore pre-built ontologies, design your own in a visual editor, export as RDF/XML, and share interactive diagrams — all from a fully static site with zero backend dependencies.

    Cytoscape.js-powered graph that renders any ontology as an interactive node-and-edge diagram. Pan, zoom, click nodes to inspect properties, and use the live search bar to filter entities and relationships.

    Excerpt from the microsoft/Ontology-Playground README on GitHub (MIT license). © its authors.Read the full README on GitHub

    Daily snapshots

    Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots

    Sep 11: +17Sep 12: +5

    +591 stars over 79 days across 8 snapshot days; best day +17 on Sep 11.

    Forks

    384+87

    Open issues

    10-18

    Compared with peers in Web

    Fastest-growing repositories GStars tracks in this cohort for the week of Nov 1, by 7-day star growth

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