yEd is a powerful diagram editor that can be used to quickly create diagrams manually or import external data for analysis and auto-magically arrange even large data sets by just pressing a button. You can use yEd to quickly create flow charts, BPMN and UML diagrams...
- - yEd Graph Editor is the most popular Web-based, Windows, Mac & Linux alternative to Protégé.
- - yEd Graph Editor is the most popular free alternative to Protégé.
yEd Graph Editor Features
Opinions about yEd Graph Editor as a Alternative to Protégé
TheBrain helps you organize all your Web pages, contacts, documents, emails and files in a context-driven visual map.
- - TheBrain is the most popular Android, iPhone, iPad & Android Tablet alternative to Protégé.
Visual Understanding Environment (VUE) is a mind-mapping and concept-mapping tool. It is also a non-linear presentation program.
- - Visual Understanding Environment is the most popular Open Source alternative to Protégé.
The project seems no longer developed. Last version, 3.3.0, released in October 2015, can be still downloaded from the official website and from GitHub.
concept maps on servers, edit their maps synchronously (at the same time) with other users on the Internet, and search the web for information relevant to a concept map.
3D Topicscape is a Personal Information Manager that provides a template loosely based on mind-mapping or concept mapping. It presents the mind map as a 3D scene where each node is a cone (or pyramid, or variation on such a shape). It can also display in a 2D format.
3D Topicscape Features