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Free diagramming editor (formerly diagrams.net) for flowcharts, network, UML and architecture diagrams, available as web app, desktop app and integrations
Apache-2.0 Free Open source Local Self-hosted Nov 2, 2026GS Google (Chrome DevTools team) · Literature discovery & review
Free scholarly search engine from Google that indexes articles, theses, books and court opinions with citation counts and author profiles
Proprietary Free Nov 2, 2026M Mermaid project (Knut Sveidqvist and contributors) · Design & prototyping
JavaScript library that renders flowcharts, sequence, class, state, ER, Gantt and other diagrams from a Markdown-like text syntax
MIT Open source Free Local Nov 2, 2026