Google Scholar
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
ProprietaryFreeNov 2, 2026
Directory
3 tools
Results
Mendeley
Elsevier · Citation management
Free reference manager from Elsevier with a desktop and web app, PDF annotation, a Web Importer, groups and bundled cloud storage
ProprietaryFreeLocalNov 2, 2026
Wayback Machine
Internet Archive · Web archiving
The Internet Archive's public web archive for browsing historical snapshots of web pages, with Save Page Now, Availability, CDX and Memento APIs
ProprietaryFreeNov 2, 2026
Page 1 of 1
Share this view: /tools?iface=browser-extension&source=proprietary&pricing=free