Compare I, Librarian products

Pro

then from $3 / mo. $

Best for companies
Subscribe now!
  • online PDF organizer with extra features for research groups
  • centrally managed PDF collection, no syncing required
  • in-browser PDF viewer with annotation
  • OIDC and SAML2 SSO authentication
  • access your private collection from anywhere on the Internet
  • store unlimited number of PDFs (<500GB)
  • very accurate OCR for over 90 languages $
  • faceted search with detailed snippets
  • search all Lite databases + ScienceDirect, Scopus, and 100M world-wide patents
  • PDF highlighted text summary & export
  • standalone offline app with offline notes
  • audio note recording
  • AI PDF and project chat and summaries
  • user activity logs
  • email support — 24 hour response time
Lite

then from $2 / mo. $

Best for casual users
Subscribe now!
  • online PDF organizer with extra features for research groups
  • centrally managed PDF collection, no syncing required
  • in-browser PDF viewer with annotation
  • OIDC and SAML2 SSO authentication
  • access your private collection from anywhere on the Internet
  • store unlimited number of PDFs (<500GB)
  • very accurate OCR for over 90 languages $
  • faceted search with detailed snippets
  • search Arxiv, Crossref, IEEE, NASA, PubMed, and PubMed Central
  • no PDF highlighted text summary
  • standalone offline app, no offline notes
  • no audio note recording
  • no AI
  • no user activity logs
  • email support — 24 hour response time
Free — GPL3

$0

Best free PDF manager :-)
Download
  • online PDF organizer with extra features for research groups
  • centrally managed PDF collection, no syncing required
  • in-browser PDF viewer with annotation
  • LDAP authentication, no single sign-on
  • self-hosted — access from the Internet requires an IT expert
  • recommended for up to 10,000 PDFs
  • accurate OCR for English language
  • simple search with result highlighting
  • search Arxiv, Crossref, IEEE, NASA, PubMed, and PubMed Central
  • no PDF highlighted text summary
  • standalone offline app, no offline notes
  • no audio note recording
  • no AI
  • no user activity logs
  • no customer support

More offers

I, Librarian Pro On-premises

  • best for privacy or compliance
  • create unlimited number of libraries
  • perpetual license for a one time fee
  • IT department and end user support
  • version 6 coming soon