LimeSurvey is an open source tool that is ideal for running online surveys of any nature, size, or complexity. This transparently developed open source tool with an inbuilt template editor can help you build surveys of a more complex nature. The possibilities of creating professional surveys using the LimeSurvey interface are endless. In the rare event that the feature you are looking for is missing, LimeSurvey also offers tailored solutions to cater to your specific needs.