This is the OpenXPKI public demo - feel free to do a testdrive and issue or revoke certificates.
Go to the Login page, choose handler "User" or "Operator", use "raop" or "raop2" as user and "openxpki" as password. You handler "Certificate" to authenticate using any TLS client cert issued via the UI before.

Please address any questions to the public mailing list at openxpki-users@lists.sourceforge.net.

Some documentation can be found at readthedocs.org, the code repository is hosted on github.com.