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Citation tools (also called bibliographic management tools or citation managers) help you organize, manage and format citations for your research.


EndNote 20


New Refworks


Free for Duke affiliates (download)Free for everyone (download)Free for Duke students, faculty, staff, & alumni (more info)Free for everyone (download)
Access Type
Desktop application with basic web version for syncing and sharingDesktop application with full web versionWeb-onlyDesktop application with full web version
Bibliographic Styles
Endnote Output StylesMendeley Output StylesRefWorks Output StylesZotero Output Styles
Word processor integration
  • MS Word
  • Libre Office
  • Google Docs
  • MS Word
  • Libre Office
  • Neo Office
  • MS Word
  • Google Docs
  • MS Word
  • Libre Office
  • Google Docs
  • Neo Office
Duplicate detection
User can identify fields, Requires comparisonMerges duplicatesRequires comparisonMerges duplicates
Storage space
Unlimited reference and attachment storage2 GB free storage; several plans for additional storageUnlimited reference storage; 20 MB for attachments300 MB Free; 2 GB $20/year; 6 GB $60/year; Unlimited $120/year
Mobile apps or mobile optimized web interfaces
Yes—iOS onlyYesYesSome community-developed apps are compatible
Support for collaboration
Shared libraries through EndNote web, which is not as fully featured as the desktop applicationExcellentEasy for groups at the same institution, not supported across institutionsExcellent
pdf annotation
Non-traditional formats and unpublished works
YesNo templates for archival materialsYesYes
Global find and replace
Ability to work offline
Using desktop applicationUsing desktop applicationNoUsing desktop application
Tool-specific features
Find full-text feature; authenticate through librarySocial Networking: newsfeeds, profile pages, following, commentingOpen source community; Active, crowd-sourced support forumsMany language interfaces: Chinese, English, French, German, Italian, Japanese, Korean, Spanish
Availability after Duke
At costFreeAlumni accessFree