Kaida Components is an open-source library of beautiful UI components based on the HTML, Tailwind CSS, and Vanilla JS. Copy-paste to use in your project. Open-source. AI native.
It covers common website components such as buttons, dropdowns, navigation bars, and modals, as well as advanced components like date pickers and more. We take care of neat look, accessibility, functionality and performance.
Kaida also lets you style components with AI and export them to Figma.
You can help too: GitHub.
Key ideas
Beautiful, well-thought-out, simple. We provide thoughtfully designed components that can be consistently and extensively customized. Each component is built to work seamlessly with others, saving your time.
Universal. Kaida components are universal and can be easily integrated into any project built on web technologies (and with modern LLMs, this process has become simpler). We also use Web Components to simplify reuse across different frameworks and environments.
Simpler frontends. Over the past 15 years, frontend frameworks have made it possible to create amazing UIs. But the ecosystem is overcomplex. SPA frameworks have great use cases, but often unnecessary: they add complexity without clear benefit. We believe many problems can be solved in simpler, faster, and more enjoyable ways. And we strive to provide tools that make that possible.
Bridging the gap between des and dev. We believe that design and development are becoming closer, and we need new tools and ways for collaboration. We want to create a shared context, a common foundation, and shared components for designers and developers.
Translation from HTML-CSS-JS into the technology you need. Translation from HTML-CSS-JS into your target technology has been working quite well recently (in our experience, since around late 2025).
(Detailed guide is soon to be published)Own the code. Copy code of any component or fetch it via an agent-friendly API, then freely customize layouts and styles.
Create your design system. In addition to beautiful basic components, we enable the creation of custom design systems: we carefully support customization of typography, colors, spacing, tokens, and much more. We also allow exporting them to various tools.
Dark mode ready. Dark mode is supported out of box.
Tailwind based. We use Tailwind's utility-first approach for styling. The tradeoff is known: large number of classes in components with complex states, but there are also various solutions.
JavaScript by default, TypeScript is optional. We use JavaScript by default to keep things as simple as possible. But you are free to add TypeScript if you prefer strict typing and other benefits it brings.
AI & agentic ready. Convenient to load into agents and assemble prototypes. The code is lightweight and simple. Ask to adapt components to your use case or preferred framework.
Accessibility. We use ARIA attributes where necessary.
Interactivity. Modals, dropdowns, tooltips, tabs are working out of box. Interactivity is implemented using JavaScript.
ES modules and Import maps. We use ES modules (for simplicity let's say ES modules = JS modules) and import maps.
Usage
When to use: marketing sites, blogs, dashboards, MVPs, internal tools.
When not to use: complex SPAs with heavy client state.
To get started
- Explore the docs: descriptions, key types and states, code, AI examples, layout examples.
- Get the code (headings, spacing, buttons, inputs, forms, etc.), add it to your project, and customize it to your needs. Their appearance can also be customized using AI generation.
- Create and use your custom design system.