All datasets generated from the experimental crowdsourcing projects hosted on this platform are made available under a CC0 license.

We are very keen for these datasets to be used to further research into novel technologies for turning vast print cultural heritage collections into digital collections.

Images of all cards included in Convert-a-Card can be downloaded via API from the Libcrowds Flickr Account or as direct downloads from

There are also three types of project task related data available, all of which can be downloaded below in JSON or CSV format:

  • Tasks: The task data.
  • Task Runs: The contribution data.
  • Results: The final results data.

Please contact for more information.


Download all task and contribution data.

Results Download
Tags Download