TheFragebogen enables you to create digital questionnaires.
A questionnaire is implemented as single-page application using HTML/CSS/JavaScript. It can be directly executed in a JavaScript-enabled web browser.

The main goal for implementing TheFragebogen was to create a software framework for questionnaires that:

Overview on features

For an introduction, see:

Use cases for scientific research

TheFragebogen evolved during conducting scientific research. The paper TheFragebogen: A Web Browser-based Questionnaire Framework for Scientific Research (2019, QoMEX, Berlin) describes detailed features and use cases.