To run OpenCaps, the following is required:

Other versions/configurations may work but have not yet been tested.

Read the installation documentation for details on installing. Note: the Zip library for PHP is necessary for exporting a project package.


Licensed under the Educational Community License (ECL), Version 2.0.


A demo of OpenCaps is available on this website for your use, however data is cleared out every so often so your login information and personal projects will not be saved indefinitely - make sure to export your work when finished captioning.

Opencast Mattherhorn

Coming soon - plugin communication with Matterhorn 0.5 will be showcased on a demo hosted here.