LimeSurvey – open source online survey application

LimeSurvey is an open source PHP based online survey application that allow you to develop, publish Surveys and collect responses to online surveys. It written in PHP and uses multiple database backend such as MySQL, PostgreSQL or MSSQL etc..

Users can develop, publish and collect responses to surveys without having knowledge about coding. it also allow survey branching, quota support, custom preferred layout and design using a web template system, export survey results to various formats, and provide basic statistical analysis of survey results. Surveys can be either publicly accessible or be strictly controlled through the use of "once-only" tokens for each survey participant. Additionally results can be anonymous be separation of participants data and result data, even for controlled surveys.

Features of LimeSurvey

1. Unlimited number of surveys at the same time
2. Unlimited number of questions in a survey
3. Unlimited number of participants to a survey
4. Multilingual surveys
5. User management
6. 20 different question types with more to come
7. Simple WYSIWYG HTML Editor
8. Quotas Management
9. Integration of pictures and movies into a survey
10. Creation of a printable survey version
11. Conditions for questions depending on earlier answers (Skip Logic / Branching)
12. Re-usable editable answer sets
13. Ready-made importable questions
14. Assessment surveys
15. Anonymous and Not-Anonymous survey
16. Open and closed group of participant surveys
17. Optional public registration for surveys
18. Sending of invitations, reminders and tokens by email
19. Cookie or session based surveys
20. Template editor for creating your own page layout
21. Extended and user-friendly administration interface
22. Support for Back-office data entry
23. Survey expiry dates for automation
24. Enhanced import and export functions to text, CSV, PDF, SPSS, R, queXML and MS Excel format
25. Basic statistical and graphical analysis with export facility
26. Screen Reader Accessibility
27. W3C compliance
28. Supporting more than 50 different languages in frontend and backend

Download : http://www.limesurvey.org/en/download
Demo : http://www.limesurvey.org/en/demo