Description: Archivy is an open-source self-hosted knowledge repository that allows you to safely preserve, organize and reuse your research, notes and website content. It provides tools to capture web pages, annotate PDFs and manage Markdown notes.
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