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Open-source survey and experience management platform with in-app and link surveys
Open-source conversational form builder for creating beautiful interactive forms
Mature open-source survey tool with advanced question types and quotas
Open-source form builder to create forms and surveys without code
Open-source form and data management platform with drag-and-drop builder and REST API
Privacy-respecting form and survey builder integrated directly into your Nextcloud instance
Open Data Kit server for managing mobile data collection forms and submissions
Lightweight form backend that receives HTML form submissions without backend code
Humanitarian-grade data collection platform for surveys in offline and low-bandwidth settings
World Bank's free self-hosted CAPI/CAWI survey platform for large-scale data collection
Simple Python/Django open-source form builder for self-hosted data collection