Description: Tuple is an open-source, self-hosted knowledge base and documentation software. It allows teams to create structured data and documentation that is easy to organize, search, and share. The editor supports markdown formatting for creating clean, readable text.
Type: software
Pricing: Open Source
Description: Wikidata is a free and open knowledge base that can be read and edited by both humans and machines. It acts as central storage for the structured data of its Wikimedia sister projects including Wikipedia, Wikivoyage, Wiktionary, Wikisource, and others.
Type: software
Pricing: Free