Dudle - Dudle is an online scheduling application, which is free and open source.
DemocracyOS - DemocracyOS is an open source application for online decision making.
FullCalendar - FullCalendar is an open-source JavaScript event calendar.
CivilHub - CivilHub is a free and open-source platform written in Python & Django for the purpose of...
Framadate - Make your polls
Owlie - A beautiful app for quick decision making with friends