Open-source alternatives to Kibo

Liftkit is a modular code distribution tool and component code importer designed to download UI component source code directly into local repositories. It functions as a frontend component bridge, transferring pre-made UI elements and design patterns from remote repositories into local project directories for full implementation control. The utility acts as a design system synchronizer, aligning visual components and patterns across different design and coding tools. This process ensures consistency between layout and final code by synchronizing UI design patterns throughout the development w

The United States Web Design System is a government design system and accessible UI framework. It provides a collection of standardized CSS and JavaScript components, along with a CSS component library, specifically designed for building consistent federal government websites. The system allows for custom CSS theme development through the use of design tokens for colors, spacing, and typography. Users can customize visual themes and compile custom styles to maintain a unified brand identity across multiple web properties. The framework covers responsive interface design and web accessibility

This project is a collection of reusable UI component libraries for the Angular framework. It serves as an accessibility framework and a suite of building blocks for constructing user interfaces. The library provides a specialized component suite for implementing Material Design visual and interaction specifications. It also includes dedicated integrations for embedding interactive Google Maps with geographic data overlays and integrating YouTube video players with support for deferred loading. The project covers a broad range of UI development capabilities, including the creation of accessi

cmdk is an unstyled, headless React component library for building accessible search-based navigation and command interfaces. It provides the logic and state management required to create keyboard-navigable command palettes that filter lists of actions and items based on user input. The library distinguishes itself by remaining visually agnostic, offering a collection of logic-heavy components without predefined styles. It supports advanced organization through hierarchical menu navigation, nested paging systems, and conditional group filtering that hides categories when no child items match

Taxonomy is a full-stack application template and reference implementation built with the Next.js app router. It serves as a comprehensive starter for developing web applications using server components and modern React patterns. The project integrates a variety of specialized systems, including an identity management workflow for OAuth and session handling, and a billing system for managing recurring subscriptions and payment events. It also features a content pipeline that transforms Markdown and JSX files into type-safe data collections for rendering blogs and documentation. The architect

Downshift is a headless UI component library and framework for React that provides the state and interaction primitives necessary to build accessible autocomplete, combobox, and select dropdown components. It functions as a WAI-ARIA UI framework, generating the required ARIA attributes and keyboard event handlers to ensure screen reader compliance without providing any default styling. The library utilizes a headless component pattern to decouple interaction logic from the visual presentation. It manages complex state transitions through reducers and synchronizes internal UI state with extern

Base UI is a headless component library and unstyled framework providing accessible interface primitives. It decouples behavioral logic and state management from the visual layer, allowing developers to implement complex UI patterns while maintaining total control over the final styling. The library implements WAI-ARIA design patterns to ensure all primitives support standard keyboard navigation and screen reader accessibility. It provides a suite of low-level building blocks that handle the internal mechanics of interface elements without bundling any CSS. The framework covers a broad range

shadcn-vue is an accessible design system framework and UI component library for Vue applications. It provides a collection of accessible, unstyled interface elements and pre-designed building blocks styled with Tailwind CSS, all of which are built on top of Radix Vue primitives. The project utilizes a command line interface to install specific components and themes directly into a local project directory rather than as pre-compiled dependencies. This distribution model allows users to own and modify the source code locally to create a custom design language. The library covers a broad range

Precedent is a Next.js application starter and component library providing a foundational set of pre-configured tools and primitives for building production-ready web interfaces. It serves as a toolkit for bootstrapping applications with integrated authentication, analytics, and a collection of opinionated UI components. The project distinguishes itself through a Tailwind CSS UI kit that combines accessibility primitives and motion libraries to create polished interfaces. It includes a server-side image generator for programmatically creating dynamic social sharing images and preview visuals

Konsta is a cross-platform mobile design system and native-style component library. It provides a collection of pre-made user interface components built with Tailwind CSS to create mobile application views that maintain a consistent native appearance across different mobile operating systems. The library focuses on native interface emulation, applying design systems that mimic the official visual styles and guidelines of iOS and Android. It uses platform-specific style mapping and design-system-based theming to ensure hybrid or web applications look like native apps. The framework covers mob

gluestack-ui is a cross-platform React component library built with Tailwind CSS. It provides over 30 pre-built, accessible components that can be installed by copying their source files directly into a project, giving developers full control over customization without external runtime dependencies. Every component implements WAI-ARIA patterns, keyboard navigation, and screen reader support out of the box. A key differentiator is the copy-paste architecture: rather than a traditional package dependency, component source code is placed in the project, allowing direct editing and eliminating ve

This project is a framework-agnostic library for building accessible, search-as-you-type interfaces. It provides a headless logic layer that decouples search state management and result filtering from the visual presentation, allowing developers to maintain full control over the underlying HTML structure and styling. The library distinguishes itself through a highly modular architecture that supports multi-source data aggregation, enabling the combination of results from static arrays, remote APIs, and external indices into a single interface. It features a flexible rendering engine that inte

Shadcn-ui-expansions is a React and Tailwind CSS component library that provides a collection of pre-built user interface elements and utilities designed to be copied directly into web applications. The project extends the shadcn-ui ecosystem with additional interactive widgets and layout elements to speed up frontend development. The library includes advanced form controls such as date and time pickers, searchable multi-item tag selectors, dual-range numeric sliders, and expanding textareas that automatically adjust height as content grows. Additional components feature animated text typing

This project is a collection of accessible user interface components designed for full developer ownership. It functions as a copy-paste UI framework and headless component kit, providing the logic and structure for interface elements without relying on traditional versioned library dependencies. The system distributes source code directly to the user, allowing for the creation of a custom component library. It utilizes a distribution method where components are copied into the codebase, ensuring that the visual and functional implementation remains under the developer's control. The toolkit

Park UI is a collection of accessible, pre-styled interface components designed for consistent design across multiple JavaScript frameworks. It functions as a cross-framework user interface kit that provides functional logic and styling hooks for building inclusive web applications. The library utilizes a headless component architecture that delegates state and accessibility logic to a decoupled engine, allowing for flexible styling. By employing a framework-agnostic approach, it ensures that interface elements maintain a unified design language and reliable behavior across various developmen

This framework provides a comprehensive library of reusable, accessible UI components designed for server-side rendered web applications. It enables developers to build interactive interfaces by synchronizing state between the server and the browser, ensuring that markup and data remain consistent without requiring complex client-side logic. The project distinguishes itself through deep integration with artificial intelligence, offering tools that expose component schemas and interface definitions to coding assistants. This allows for automated discovery and implementation of UI elements, whi

Codyhouse Framework is a front-end design system framework and CSS utility framework that provides an accessible UI component library for building bespoke user interfaces. It combines modular component authoring, semantic accessible markup, and utility-first styling classes with design-token-driven styling to enforce consistent visual design rules across web projects. The platform includes global design token configuration for color palette generation, typography scales, spacing rules, and interactive element themes. It supports build-time asset optimization by removing unused style rules dur

This project is an accessible UI component library and themed design system. It provides a collection of pre-made user interface components designed to meet accessibility standards and maintain a consistent visual identity across web applications. The system includes an interactive theme previewer, which allows for the adjustment and testing of visual settings in real time within a running application. It covers global theme management and design system implementation through root configurations and a token-driven approach. The library supports rapid frontend prototyping by offering a set of

react-basic provides a conceptual implementation of the React model, focusing on a component-based UI architecture. It employs pure functions to transform raw data into structural interface representations and uses a declarative system for managing UI state and hierarchical data distribution. The project distinguishes itself through specialized caching strategies, including tree-based result caching that stores values based on the structural position of elements. It also features a mechanism for deferred function execution to remove boilerplate from business paths and supports the isolation o

Zag is a headless UI state machine library that provides unstyled component logic to ensure consistent behavior across different rendering engines. It functions as a toolkit for modeling complex user interface interactions using statecharts, decoupling the underlying logic and accessibility attributes from visual styling. The library is framework-agnostic, utilizing specialized adapters to bridge its state machine logic with various JavaScript libraries such as React, Solid, Vue, and Svelte. This approach allows developers to maintain a single interaction model while applying any CSS or styli

This project is a Blazor component library and web UI framework used for building web applications with ASP.NET Core Blazor. It serves as an implementation of the Fluent Design System, providing a collection of reusable, pre-styled user interface elements to ensure visual consistency and accessibility. The library includes an asynchronous data grid capable of resolving remote queries through asynchronous data fetching and entity mapping. It utilizes a design token system to manage visual styles and personalization settings across an application. The framework covers broader capabilities for

Gestalt is a type-safe React UI component library and design system. It provides a collection of reusable interface elements and design tokens that follow international accessibility standards to ensure usability for people with diverse needs. The framework includes a responsive web layout system with defined breakpoints and grid containers that adapt interfaces for desktop, mobile, and tablet devices. It features an internationalized component suite that supports multiple languages, regional color schemes, and right-to-left text orientations. The library covers a broad range of interface ca

Primitives is a library of unstyled, accessible building blocks designed for creating complex interface elements in React. It functions as a headless component framework, providing the underlying logic, state management, and accessibility compliance while leaving all visual styling and design decisions entirely to the developer. The library distinguishes itself through a composition-based architecture that allows developers to build interactive interfaces by nesting small, single-purpose components. This system automatically handles complex requirements such as WAI-ARIA attribute injection, f

Blockly is a block-based coding library and visual programming editor that allows users to build programs by interlocking graphical blocks. It functions as a visual code generator, translating these arrangements of logic blocks and variables into executable source code for various programming languages. The library provides a framework for creating custom visual programming languages and low-code logic designers. It utilizes an SVG-based UI library to render interactive, draggable elements on a web canvas. The system is designed as an accessible web UI framework with integrated keyboard navi

This project is a collection of accessible, reusable interface components built for the Svelte framework. It functions as a comprehensive design system implementation, providing a standardized toolkit for constructing responsive and inclusive user interfaces that adhere to established design language and accessibility guidelines. The library distinguishes itself through a deep integration with the Svelte framework, utilizing compiler-based transformations to optimize component rendering and reactive state synchronization. It features a robust theme management system that applies visual styles

Cursive is a cross-platform terminal user interface toolkit and framework for building interactive applications in Rust. It provides a modular system for creating text-based graphical interfaces, utilizing a dedicated engine to manage the main display loop and view hierarchies. The toolkit features a backend-agnostic abstraction layer to ensure consistent rendering and input handling across different operating systems. It distinguishes itself through a palette-based theme engine that supports runtime theme loading and true color rendering, as well as the ability to generate user interface hie