Webuzo for LimeSurvey - Version 1.91+ LimeSurvey (formerly PHPSurveyor) is an open source online survey application written in PHP based on a MySQL, PostgreSQL or MSSQL database. It enables users without coding knowledge to develop, publish and collect responses to surveys. Surveys can include branching, custom preferred layout and design (using a web template system), and can provide basic statistical analysis of survey results.