What does Protégé do?

Creating, editing, and managing complex ontologies for knowledge representation. It is catalogued under Developer Tools on PulseGate.

Who is Protégé for?

Protégé is a B2B product built for knowledge engineers and ontology developers.

Yes — Protégé is free to use.

Is Protégé still active?

Unverified. Protégé has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to Protégé?

Similar projects tracked by PulseGate include Track Debug, ZenPress, and StarPulse.

Protégé is developed by Stanford University.

Back to the index

Protégé

Name: Protégé
Author: Stanford University

FlathubDeveloper Tools

Protégé is a feature-rich desktop environment for creating and editing ontologies, with full support for the OWL 2 Web Ontology Language. It offers visualization, reasoning, and advanced refactoring tools, making it ideal for knowledge engineers and ontology developers.

FreeLinux

Visit Flathub

Overview

5 features

In the Developer Tools space, Protégé takes a focused approach. Creating, editing, and managing complex ontologies for knowledge representation. Protégé is a B2B product aimed at knowledge engineers and ontology developers. Protégé is free to use. It runs on Linux.

It is developed by Stanford University. Key capabilities include ontology editing, OWL 2 support, and visualization tools.

Ontology editing
OWL 2 support
Visualization tools
Reasoner integration
Refactor operations

Built with & integrations

Runs on

Linux

Trust & compliance

Verified signals

HTTPSFree tier

Indexing history

What PulseGate has recorded for this listing

Indexed6 Jul · 17:03 UTC
protege verified against its public source
Source: PulseGate · Open

Frequently asked questions about Protégé

What does Protégé do?: Creating, editing, and managing complex ontologies for knowledge representation. It is catalogued under Developer Tools on PulseGate.
Who is Protégé for?: Protégé is a B2B product built for knowledge engineers and ontology developers.
Is Protégé free?: Yes — Protégé is free to use.
What platforms does Protégé run on?: Protégé runs on Linux.
Is Protégé still active?: Unverified. Protégé has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to Protégé?: Similar projects tracked by PulseGate include Track Debug, ZenPress, and StarPulse.Track Debug ZenPress StarPulse
Who makes Protégé?: Protégé is developed by Stanford University.

At a glance

Platforms: Desktop
Languages: English
First seen: 6 Jul 2026
Built for: knowledge engineers and ontology developers
Model: B2B
Solves: Creating, editing, and managing complex ontologies for knowledge representation.

Registered as

Flathub: edu.stanford.protege

Developer

Stanford University

Live coverage

Identity confidence: Medium · 70
Indexed: 6 Jul 2026
Lifecycle: Unverified
First seen: Jul 2026
Last seen: 6 Jul 2026

Identity audit (12)

Slug: protege-flathub-org
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 6 Jul 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Taken from the project's own store listing.
Languages from: Detected by a language model from page content.
Last updated: 4 Aug 2026
Canonical URL: https://flathub.org/apps/edu.stanford.protege

Ship this? Send a correction — no account, and you get a link to follow it.

Also in Developer Tools

Same category — not a similarity match