Cocoda is a web application to manage and create mappings between knowledge organization systems, such as classifications, authority files, and thesauri. The application is developed as part of project coli-conc at GBV, funded by DFG.

Public instances of Cocoda are listed at with the most recent development version at

There is also a user manual:

Feedback and contributions are very welcome: please use the issue tracker for bug reports and feature request!

For technical details, including installation and configuration see the project repository at GitHub.