To cut a very long story short: LimeSurvey has a lot of features.
LimeSurvey basically contains everything you need for doing nearly every survey with grace.
What is still missing will most likely be found on our rapidly shrinking roadmap.
LimeSurvey currently offers:
- Unlimited number of surveys at the same time
- Creation of a printable survey version
- Unlimited number of question groups in a survey
- Unlimited numbers of questions in a group/survey
- 20 different question types with more to come
- Ability to set conditions for questions depending on earlier answers (branching the survey)
- Re-usable editable answer sets
- Ready-made importable questions
- Assessment surveys
- Unlimited number of participants to a survey
- Anonymous or open surveys as well as closed surveys
- Optional public registration for surveys
- Sending of invitations, reminders and tokens by email
- Option for participants to buffer answers to continue survey at a later time
- Cookie or session based surveys
- Template editor for creating your own page layout
- Extended and user-friendly administration interface
- Back-office data entry possibility
- Survey start & end-dates for automation
- Enhanced import and export functions to text, CSV and MS Excel format
- Basic statistical and graphical analysis with export facility
- Supporting more than 20 different languages in frontend and backend:
- Bulgarian
- Chinese (Simplified)
- Chinese (Traditional)
- Croatian
- Danish
- Dutch
- English
- French
- German
- Greek
- Hebrew
- Hungarian
- Italian
- Japanese
- Lithuanian
- Norwegian
- Portuguese
- Romanian
- Russian
- Serbian
- Slovene
- Spanish
- Turkish
- Swedish
- Vietnamese
- ....more to come
- Detailed manual in six languages included in the download or as Online Manual
Other 
