Development Information

All software that is developed by CLARIN   is Open Source and released under the GPL v3 license. Please note that while in the past most software projects were hosted at our own SVN repository, new projects are managed via GitHub.


For CLARIN core software, see the CLARIN GitHub Repository. A list of other CLARIN-related software that is hosted at GitHub is available here.

Development Guidelines

If you intend to contribute code or to start a CLARIN software project, please make sure to read the Guidelines for Software Development (requires trac access). More related information can be found at the EURISE network website.

Mailing lists

If you are developing software in the context of CLARIN you probably want to join the low-traffic dev mailing list, where you can discuss technical issues. To stay up-to-date about recent developments in CLARIN centres in general (including server maintenance, planning, etc.) please subscribe to the all-centers mailing list.


We have a Slack Workspace that we use for interaction on technical subjects. If you want to join it, please request an invitation by email via slack /at/

Subversion (SVN) and Trac/wiki

(currently being phased out)

CLARIN ERIC runs a Subversion repository ( and a Trac project management and bug/issue tracking system with wiki ( tied to the Subversion repository.

If you would like to access these services you can register via Please choose trac/svn (developers)  in the 'Which language resource or service are you interested in' dropdown menu, so that the administrators can give you the necessary rights.

After activation, the following command can be used to check out the full SVN repository:

svn checkout

, where 

is the email address used to register at

If you want to enable SVN access for an existing account or have further questions, please contact trac /at/