Open-source alternatives to React Spinners Css

🌎 The missing I18N/L10N (internationalization/localization) multiplatform library for Compose Multiplatform!

The complete toolkit for building AI agents in JavaScript. Lightweight core, React & Terminal UIs, autonomous runtime, tools, skills, memory, RAG and observability. Plug-and-play from chat UI to full agents.

This project is a design system component library and adaptive UI framework based on Adobe's Spectrum design system. It provides a collection of accessible React components designed to create consistent user experiences through a standardized set of adaptive and themeable interface elements. The framework features a responsive scale system that automatically optimizes touch targets and component sizing for mobile and desktop contexts. It is built as a tree-shakable library, allowing for the import of only the specific components used to minimize the final JavaScript and CSS bundle size. The

react-flip-toolkit is a coordinate-based transition framework and layout animation library for React. It uses a magic-move technique to calculate element positions, preventing jarring jumps during layout shifts through interpolation and physics. The library provides a spring-based motion engine that uses stiffness and damping settings to create natural movement for layout and style changes. It includes specialized tools for shared element transitions, which coordinate visual movements across client-side route changes to maintain continuity between different pages. The system covers layout tr

Lottie-android is a native vector animation engine and library for Android that parses JSON specification files into high-fidelity animations. It functions as a JSON animation parser and renderer, translating After Effects exported data into native draw calls to maintain design fidelity on mobile devices. The library supports dynamic user interface control by allowing the modification of animation properties, such as colors, text, and shape attributes, during runtime playback. It also integrates with system-level accessibility settings to adjust playback and visibility in accordance with redu

This project is a comprehensive Blazor UI component library and web interface design system. It provides a collection of native web components and a specialized data visualization suite for building professional user interfaces within the Blazor framework. The library implements industry-standard visual frameworks, including Material Design and Fluent UI. It features a dynamic theming system that uses CSS variables to allow for runtime customization of colors and spacing, including the ability to switch between light and dark modes. The component suite covers a broad range of functional area

laxxx is a lightweight JavaScript framework for creating scroll-driven animations and DOM element bindings. It functions as a CSS interpolation engine and animation utility that maps numeric driver values to HTML attributes and styles in real time. The framework specializes in linking visual properties to scroll position and velocity, featuring built-in inertia to smooth out transitions and prevent abrupt visual jumps. It utilizes a driver-based system to generate numeric streams from inputs like mouse movement or time, which are then transformed into CSS outputs through easing equations and

JavaScript library enabling SVG icons to morph from one to the other. It implements Material Design's Delightful Details transitions. (THIS PROJECT IS NOT MAINTAINED ANYMORE)

Weex-UI is a cross-platform mobile UI kit and component library designed for constructing high-performance mobile application interfaces. It functions as a Vue-based mobile framework, providing a set of standardized interface components that integrate with Vue.js for declarative UI development. The library enables cross-platform interface design and mobile UI development by providing pre-built visual elements. This allows for the assembly of interactive application screens and rapid application prototyping to test design patterns and user interactions. The framework utilizes a component-base

Single purpose classes to help you orchestrate CSS animations

A great list of open sourced UI Motion Library produced by Animatious Group.

💧A Powerful and customizable Compose Multiplatform dropdown menu with cascade and animations.

Ant Design Pro is a comprehensive starter kit and administrative framework for building enterprise-level admin dashboards and professional user interfaces. It provides a structured project foundation and a set of React admin templates, including pre-defined layout blocks and routing configurations. The framework distinguishes itself by providing a built-in frontend mocking environment and mock-service middleware to simulate backend API responses during development. It also features integrated conversational AI components and assistant pages for embedding intelligent interactions directly into

Ant Design Blazor is a library of enterprise-class UI components that implement the Ant Design visual language for Blazor applications. It provides a complete set of pre-built, high-quality components designed for building professional web interfaces in complex business applications. The library is distributed as a single NuGet package that integrates into existing Blazor projects through standard dependency injection, and also offers template-based project scaffolding for generating new project structures. It supports multiple hosting models, allowing the same components to run across WebAss

macOS SF Symbols rendering for Rust / GPUI applications.

Arco Design is a React UI component library and design system framework used to build professional web interfaces. It provides a collection of pre-built visual elements and layouts designed to maintain a consistent design language across applications. The system features a token-based theming engine that utilizes hierarchical design variables and CSS variables to enable granular visual customization. This allows for the modification of global and component-level styles through a dedicated theme editor or loader to align the interface with specific brand identities. The framework supports ent

Arco Design Vue is a Vue component library and design token system used to build consistent user interfaces. It provides a collection of pre-made visual components that handle common layout and interaction patterns. The framework features a tree-shakable architecture, allowing the removal of unused components and styles to reduce the final application bundle size. It utilizes a configuration framework based on JSON to customize colors, spacing, and visual styles across a project. The library covers broad capabilities for responsive web design and custom design system creation. It employs a t

A comprehensive, professional UI component library for GPUI, the GPU-accelerated UI framework powering the Zed editor. Inspired by shadcn/ui, adabraka-ui provides 85+ polished, accessible components for building beautiful desktop applications in Rust.

Sketchy Theme UI Preset

animateplus is a lightweight JavaScript animation library designed for creating high-performance 60 FPS visual transitions and numeric interpolations for website elements. It functions as a promise-based animation engine, using async await patterns to sequence complex motion timelines and timing delays. The library includes a motion blur simulator that applies directional speed blur along the X and Y axes to mimic high velocity. It also provides a numeric interpolation tool to transition colors and graphic properties between states. The system manages high-performance element control, allowi

A lightweight screen navigation library for GPUI applications.

Design engine for Claude Code, Codex & Cursor — teaches design judgment, not just data. 74 rules, 48 components, 7 brand skins (Toss/Stripe/Linear/Notion/Raycast/Arc/Vercel), a named motion system (5 seeds 20+ moves), 15 /ss-* skills. Stop shipping AI UI that looks generated. MIT.

Highly customizable and theming components for React Native

Blazor UI component library based on Material Design. Support Blazor Server, Blazor WebAssembly and MAUI Blazor.