Bootstrap 5 Theme with shadcn/ui Aesthetics – Shadstrap
Use Shadstrap for a shadcn/ui look in your Bootstrap projects. Leverages Bootstrap grid, utilities, JS components, and FontAwesome.
Frameworks
Minimalist CSS Framework For Creating Modern Web Pages – Mgplus
A minimalist CSS framework to provide a set of styles and UI components for developers aiming to craft a website or a concise web page swiftly.
Terminal-Inspired CSS Library for Retro Web UI – WebTUI
Create terminal-inspired web interfaces with WebTUI, a lightweight CSS library featuring modular components and theme plugins like Nord and Catppuccin.
Bootstrap 5 & Material Design UI KIT
A pure JavaScript/CSS UI Kit to help you quickly build Material Design web applications using Bootstrap 5 and 700+ built-in UI components.
Modern, Responsive Bootstrap Dashboard Template – Astero Admin
MIT-licensed Bootstrap 5 admin template with dark mode, RTL support, and modern build tools. Free for commercial use.
Minimal Classless CSS Framework – Simple.css
A lightweight CSS framework (also considered as a CSS reset) that helps developers quickly build a minimal clean looking website.
Zero-Class Web Development with launch.css Framework
A classless CSS framework that styles semantic HTML without custom classes. Includes light/dark themes and responsive layouts.
Vanilla CSS Design System: Lightweight & Modular
A lightweight, modular CSS design system for consistent UIs. Features CSS variables, responsive design, and accessibility.
Right-to-left (RTL) Theme For Boostrap 4.x
A full-featured Bootstrap Right-to-left (RTL) theme for Arabic, Aramaic, Azeri, Dhivehi/Maldivian, Hebrew, Kurdish (Sorani), Persian/Farsi, Urdu languages.
Responsive Classes CSS Framework – Prime.css
A lightweight, classless CSS framework for styling semantic HTML directly. Get clean UIs fast with optional JS components.