* [Formbricks 4.8.0](https://github.com/formbricks/formbricks) – Survey platform for gathering user feedback through various types of surveys.

* [formr survey framework v0.24.13](https://github.com/rubenarslan/formr.org) – Framework for creating complex studies by chaining surveys and using R for feedback and designs.

* [LimeSurvey 6.16.12+260309](https://github.com/LimeSurvey/LimeSurvey) – Powerful online survey platform with features like conditional logic, multilingual support, and customizable templates.