Free library of copy-paste HTML/CSS UI components with live preview, plus a sandbox for building and sharing your own.
CodeHarem is a free, open library of UI components built with plain HTML, CSS, and Tailwind CSS. Every snippet works without a framework — copy the code, paste it into your project, and ship. Browse CSS buttons, cards, loaders, spinners, inputs, accordions, toasts, and more, each with a live preview. The platform also includes a component sandbox with a live HTML, CSS, and JavaScript editor for building and previewing your own components, with one-click download. The blog offers practical frontend and CSS guides. Target users are developers looking for ready-to-use UI components or a playground to experiment.
Product positioning · Revenue signals · Competitors & sources
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