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CKAN Logo full color.png
Original author(s) Open Knowledge International
Stable release
2.6.2[1] / 5 April 2017 (2017-04-05)
Written in Python
Available in Multilingual
License AGPL

The Comprehensive Knowledge Archive Network (CKAN) is a web-based open source management system for the storage and distribution of open data. Being initially inspired by the package management capabilities of Linux,[2] CKAN has developed into a powerful data catalogue system that is mainly used by public institutions seeking to share their data with the general public.

CKAN's codebase is maintained by Open Knowledge International. The system is used both as a public platform on Datahub[3] and in various government data catalogues, such as the UK's,[4] the Dutch National Data Register, the United States government's[5] and the Australian government's "Gov 2.0".[6] The state government of South Australia also makes government data freely available to the public on the CKAN platform.[7]

Internal technology[edit]

CKAN's back end, the part running on the Web server, is written mainly in Python. The web pages it offers to user browsers include Javascript. CKAN maintains information about the data sets to be offered to users in PostgreSQL databases. Searches are implemented by Solr. CKAN installations can be queried through Web APIs.[8]

Similar projects and alternatives[edit]

Dataverse provides similar functions and is widely used for open data. DSpace is another alternative to CKAN for storing scientific data.


  1. ^ "New CKAN patch releases now available". 5 April 2017. 
  2. ^ Rufus Pollock, Daniel Dietrich (2009-12-28). "CKAN: apt-get for the Debian of Data". 26th Chaos Communication Congress. Retrieved 15 February 2011. 
  3. ^ About Datahub
  4. ^ About
  5. ^ " Launches New Catalog and APIs". 2013-05-22. 
  6. ^ "New – now live on CKAN". 2013-07-17. 
  7. ^ SA Government data now freely available
  8. ^ About CKAN at

External links[edit]