Opensource UI

Opensource UI is a free, MIT-licensed library of 200+ copy-paste components for React and Next.js, built by Bidyut in TypeScript and Tailwind CSS and launched in July 2026. Its standout pieces are detailed device mockups: iPhones in Titanium and Space Gray finishes, Apple Watch frames with complications, a classic iPod with a click wheel and browser chrome, alongside clocks, annotations, widgets and a writing space. Worth opening when a case study needs a device frame built in code rather than a flat mockup image, though the library has no dark mode.