Lightweight & Semantic UI Component Library – Oat UI
A lightweight UI component library that styles semantic HTML. No frameworks, no classes, just 8KB of CSS and JS with full theming.
JavaScript & CSS Classless
Monospace UI Framework for Grid-Aligned Interfaces – ASTA Design System
Build precise, terminal-style interfaces with ASTA’s character grid system. Includes modals, forms, and ASCII art support.
Classless CSS Framework with Georgia & Verdana Typography System – MCSS
A classless CSS framework that styles semantic HTML with Georgia or Verdana typography themes. No classes required, includes dark mode.
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.
Responsive Classes CSS Framework – Prime.css
A lightweight, classless CSS framework for styling semantic HTML directly. Get clean UIs fast with optional JS components.
Modern Classless CSS Framework – cosmoCSS
A modern classless CSS framework for styling semantic HTML instantly. Features responsive design and automatic light/dark mode switching.
Modern Web Styling Without Class Declarations – Classless.css
A lightweight CSS-less CSS framework that automatically styles semantic HTML elements. Get responsive design and dark mode without adding a single class.
Minimal Clean CSS Design System – Pico.css
Pico.css is a minimal, responsive, semantic, reader-centric design system implemented in pure CSS.
Class-Less CSS Framework for Responsive Accessible Web Design – VanillaHTML
A lightweight CSS framework that styles semantic HTML elements without classes. Build accessible, responsive websites faster with clean markup.