About

Supersonic UI was created with a clear purpose: to offer a lightweight UI library and set of helpers that work without a build step and can be dropped into a page by simply including the script.

It is designed for the web, especially marketing sites, landing pages, and content-driven experiences where polished interactions matter more than framework overhead.

The library follows a progressive-enhancement approach. Its JavaScript components are activated through data-* attributes, keeping the markup simple, readable, and easy to extend.

It also includes a complete form layer with validation, submission handling, AJAX responses, and feedback patterns, giving you a practical toolkit for common website needs.

With minimal CSS for its components and a natural fit for Tailwind CSS, Supersonic UI is particularly well suited to Astro projects, static websites, and fast-moving landing pages.