React Spectrum vs. Semantic UI React vs. Untitled UI vs. Vue.js Comparison Chart

​React Spectrum is a React implementation of Spectrum, Adobe’s design system. It provides components that are adaptive to interactions and screen sizes across devices, and includes full screen reader and keyboard navigation support for accessibility. React Spectrum components are designed to work with mouse, touch, and keyboard interactions. They’re built with responsive design principles to deliver a great experience, no matter the device. React Spectrum includes automatic support for dark and light modes based on operating system settings. React Spectrum components are designed to support over 30 languages, including support for right-to-left languages, date and number formatting, and more. It offers a comprehensive set of components, including buttons, pickers, collections, date and time inputs, color pickers, forms, navigation elements, overlays, status indicators, and content components.

Untitled UI is the world’s largest Figma UI kit, React component library, and icon system, offering designers and developers everything needed to design and build modern interfaces at speed. The Figma library features over 900 global styles and variables for color, typography, and effects, more than 10,000 meticulously crafted components and variants, 420 ready‑to‑use desktop and mobile page examples, and 4,600 neutral icons and logos, fully integrated into one design system. On the development side, Untitled UI React provides an open‑source collection of production‑ready components built with React v19.1, Tailwind CSS v4.1, TypeScript v5.8, and React Aria, ensuring type safety, accessibility (keyboard navigation and screen‑reader support), and lightning‑fast performance without lock‑in. AI‑ready Lovable and bolt.new kits enable instant prototyping with simple prompts, while seamless Figma previews and consistent styling across both platforms.