Horoi: open-source tool turns ontology files into docs pages with auto-generated diagrams

_AustinCalvert_ · x · 2026-11-06

Horoi is an open-source (Apache-2.0) Python tool that generates documentation pages for web ontologies (OWL/RDFS): one card per term with definitions and axioms, hoverable labels/cURIs, and a diagram auto-generated from the ontology file. Usage is a one-liner — horoi build my-ontology.ttl writes dist/, with --example and --all-tags options. 52 stars on GitHub, with a Decision ontology demo page.

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