Software

Protégé is a free, open-source ontology editor developed by the Stanford University that can be used to build ontologies and knowledge graphs. Protégé Desktop is a feature rich ontology editing environment with full support for the OWL 2 Web Ontology Language, and direct in-memory connections to description logic reasoners. It supports creation and editing of one or more ontologies or knowledge graphs in a single workspace via a completely customizable user interface.

SeaTable is a no-code/low-code platform that allows users to create custom applications, databases, and workflows with no programming knowledge required. Combining the simplicity of spreadsheets with the power of database functionalities and app builders, SeaTable makes it possible to organise, visualise, and automate business processes intuitively via a web browser. Users can design databases containing multiple tables, each with over 20 different column types (e.g. text, numbers, images, documents, checkboxes, dropdowns, formulas). 

XML Marker is an XML and Json Editor that uses a synchronized table-tree-and-text display to show you both the hierarchical and the tabular nature of your XML data. It automatically produces a tabular display of any selected tag by collecting repeating attribute and tag names and then arranging them into columns. The result is a clutter-free and informative tabular display. The implementation is very efficient in memory and CPU resources so you can quickly navigate through very large XML files – up to about 500 megabytes. More features include table sorting, syntax-highlighting editor, automatic indentation/pretty-printing of existing code, drill down, as-you-type syntax checking, bookmarks, convert to spreadsheet, Branch Selector, non-collapsing editing and more. XML Marker have full internationalization support with both Unicode/utf-8 and code page encoding.