Compare software

Google ScholarPubMed
Free

Free to use.

 Free

Free to use, run by a US government agency.

Web Web
  • Very broad coverage across disciplines
  • Includes case law and court opinions
  • Over 40 million biomedical citations in one place
  • Advanced search, clinical queries and MeSH browsing
  • Library, alerts and profiles need a Google account
  • Can throttle automated or heavy use
  • Mostly citations and abstracts; full text depends on PubMed Central or publishers
  • Limited to biomedical and life-sciences subjects
Web application Web application
Closed source Closed source
License not stated License not stated
No account needed No account needed
Needs internet Needs internet

Checked September 26, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.