In Category on 19 Oct 2026
How Greece built its national data portal on CKAN
data.gov.gr now holds 22,000+ datasets from 510+ public bodies, with DCAT-AP metadata, quality scores and harvesting into data.europa.eu
### Add Your Extension
Instructions for adding your extension to the registry are here:
<http://extensions.ckan.org/add/>
### All About Extensions
[CKAN Extensions][ext] are a way to extend the functionality of the base CKAN platform using the numerous extension points provided by CKAN.
Support for creating CKAN Extensions was first introduced in Autumn 2010 and has been extended multiple times ever since. Until now we have collected lists of extensions on the wiki but with the growing number of Extensions it is useful to have a proper registry (an Extension registry was one of the most requested items in the [Roadmap consultation][roadmap]).
Examples include:
* [Geospatial Extension that adds geospatial capabilities to CKAN][geospatial]
* [DCAT Extension to add a DCAT compliant metadata API to CKAN][dcat]
* [Custom Schemas Extension to provide easy, shareable custom schemas][scheming]
* [Commenting Extension to provide comments on Dataset pages using Disqus][disqus]
[disqus]: http://extensions.ckan.org/extension/disqus/
[dcat]: http://extensions.ckan.org/extension/dcat/
[scheming]: http://extensions.ckan.org/extension/scheming/
[geospatial]: http://extensions.ckan.org/extension/spatial/
[roadmap]: http://ckan.org/2014/10/01/ckan-high-level-roadmap-consultation-autumn-2014/
### Next Steps
At present, the Registry is confined to "functional" extensions which add new functionality to CKAN and are not specific to a given site.
We are considering adding a section for theme oriented and site-specific extensions (e.g. support for metadata specific to a given site) since these extensions may be useful as inspiration and instruction to others even if they are not likely to be directly installed.
data.gov.gr now holds 22,000+ datasets from 510+ public bodies, with DCAT-AP metadata, quality scores and harvesting into data.europa.eu
If you run a CKAN portal, 2.12 is the release to pay attention to. Large downloads stop crawling, files become things you can manage in their own right, the interface gets a modern refresh, and older instances get critical security fixes. It's the last 2.x release β and the groundwork for everything 3.0 brings.