Oat – Ultra-lightweight, semantic, zero-dependency HTML UI component library
Oat is an ultra-lightweight, zero-dependency UI component library featuring 6KB CSS and 2.2KB JS. It focuses on semantic HTML, native WebComponents, and accessibility without framework bloat. Designed for long-term stability, it avoids over-engineered ecosystems by using vanilla CSS variables and standard elements to provide a modern, minimal aesthetic similar to shadcn.