LimeSurvey
Open SourceLimeSurvey is a powerful, free, and open-source online survey application written in PHP. It supports various database backends and is distributed under the APL license. Offering extensive features for creating, distributing, and analyzing surveys, it's a flexible alternative to commercial survey tools.
Key Features
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Free and open source with no licensing costs.
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Highly customizable with advanced features like complex logic.
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Supports multiple languages effectively.
