hroot: Hamburg Registration and Organization Online Tool

- We introduce a new web-based software for managing economic experiments.
- Features to assure a randomized invitation process are provided.
- The software documents the selection procedure for potential participants.

hroot (Hamburg Registration and Organization Online Tool) is a web-based software designed for managing participants of economic experiments. This package provides important features to assure a randomized invitation process based on a filtered, pre-specified subject pool, and a complete documentation of the selection procedure for potential participants of an experiment.