Testimonial.to - Collect video testimonials in the simplest way
Bootstrap - Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Trust - Trust lets you easily create online surveys, collect customer video testimonials and reviews, then display them with beautiful widgets on your business websites.
Tailwind CSS - A utility-first CSS framework for rapidly building custom user interfaces.
Endorsal - Fully automated collection & display of testimonials. Increase conversions with beautiful, simple social proof.
Materialize CSS - A modern responsive front-end framework based on Material Design