Open-source alternatives to NavigationTabBar

BottomBar is an Android UI component that implements a Material Design bottom navigation bar. It serves as a reusable layout element for organizing top-level application destinations through a system of selectable tabs. The component features an adaptive layout system that optimizes horizontal space for tablet displays and uses density-aware adjustments for different screen dimensions. It includes a notification badge system to alert users of updates and supports conditional selection interception to prevent navigation based on application state or permissions. The library covers a broad ran

FlycoTabLayout is a Java-based library for building tabbed navigation interfaces in Android applications. It functions as a custom view component and navigation tool that allows developers to organize content into switchable categories using customizable indicators and animations. The library distinguishes itself through integrated notification badge components that display unread message tips and status indicators directly on individual tabs. It also provides specialized navigation synchronization, allowing the tab layout to function as a standalone component or as a linked navigation bar ti

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

This project is a comprehensive UI toolkit that provides a declarative, reactive framework for building modular web interfaces. It centers on a component-based architecture that maps application state to rendered elements, utilizing a twelve-point flexbox grid system and nested containers to manage complex layouts. The library ensures consistent behavior across large-scale applications by providing centralized configuration for component defaults, themes, and global design tokens. What distinguishes this framework is its deep integration of Material Design principles alongside a highly flexib

Coss is an accessible UI component library and design system framework used to build web interfaces. It provides a comprehensive kit of interactive elements and layout building blocks that follow screen reader and keyboard navigation standards. The project functions as a UI overlay management library, offering specialized tools for implementing anchored popovers, tooltips, and slide-out panels with smooth transitions. It includes a set of accessible form primitives and selection controls to ensure compatibility across different assistive technologies. Its broader capabilities cover the const

This is a bottom sheet component library for React Native that provides gesture-driven panels sliding up from the bottom of the screen. The library is built around configurable snap points, dynamic sizing, keyboard awareness, modal presentation, and synchronized scrolling, with native driver animation offloaded to the native thread for smooth performance. The library distinguishes itself through deep gesture and animation control, including custom gesture handler overrides, scroll-gesture synchronization, and dynamic snap point recalculation when content size or keyboard visibility changes. I

RKNotificationHub is a customizable badge UI library and a reusable SwiftUI notification badge component. It provides a view modifier and wrapper designed to attach numeric or dot notification indicators to any user interface element within a mobile application. The library enables the management of notification badge displays, including the ability to customize colors, frame positions, and scales relative to parent views. It includes a system for badge count management to update activity indicators through incrementing, decrementing, or explicitly setting the count. The project covers the b

This project is a Swift UI tab bar library and animation framework for iOS. It provides a custom tab bar controller designed to manage programmatic icon transitions and motion effects when users switch between different views in a mobile application. The toolkit includes built-in tab icon effects such as bouncing and rotating, as well as a custom animation protocol that allows for the definition of precise transition behaviors. These components are used to implement fluid motion effects and interactive navigation elements.

This project is a cross-platform mobile carousel component for creating swipeable image and content sliders. It functions as a virtualized list component that maintains performance by removing off-screen elements and utilizes a native-driver animation library to map scroll offsets to style properties on the native thread for lag-free transitions. The library provides a parallax image gallery capable of shifting images relative to scroll progress to create a sense of depth. It also features a layout system that supports right-to-left orientations for languages such as Arabic and Hebrew. Capab

BadgeView is a custom UI component for Android that displays numeric or text notification indicators on other view elements. It is built as a Material Design component that functions as an animated and interactive view for signaling alerts or item counts. The component distinguishes itself through support for drag-to-dismiss gestures, allowing users to remove alerts from the screen via touch interactions. It also utilizes smooth visibility animations to transition state changes rather than using immediate shifts. The library covers broad UI capabilities including content management for updat

ShortcutBadger is an Android notification badge library and UI component designed to display numeric unread counts on application shortcuts. It functions as a cross-launcher badge manager to ensure notification consistency across different device manufacturers. The library provides compatibility for various Android launchers, including those from Samsung, LG, Sony, and HTC. It implements this by mapping generic badge requests to manufacturer-specific internal APIs and utilizing dynamic vendor detection. The project covers mobile notification management and system-level badge updates to refle

SwipeBackLayout is an Android gesture navigation library that provides the mechanisms for implementing native-style edge-swipe interactions and view transitions. It functions as a swipe-to-dismiss layout manager and touch event interceptor, allowing users to return to previous screens through physical touch gestures. The library manages the visual transition between screens using a coordinate-based translation system. This includes the use of alpha scaling, view-hierarchy layering, and horizontal translation to maintain visual continuity during navigation. The system includes tools for defin

Animate UI is an animated UI component library and motion-enhanced design system. It provides a collection of pre-animated interface elements and layout primitives used to build interactive web user interfaces. The library is integrated with the Model Context Protocol, making it an MCP compatible component set that allows AI coding tools to automatically discover and implement its components. It also functions as an accessibility-aware animation framework that respects system-level reduced motion settings. The system covers a broad range of interactive visual effects, including animated typo

vue-bits is a Vue component library and animated UI kit providing a collection of pre-built interface elements and text effects. It functions as a source-code distribution system for adding motion and interactivity to web pages. The project includes a command line installer that enables the targeted extraction of specific component source code directly into a local project directory. This CLI-driven approach allows for the integration of UI elements without relying on traditional package installation. The library covers animated UI development and frontend component management, using prop-dr

Zhiliao is an Xposed Android app module designed to modify the behavior and interface of the Zhihu mobile application. It functions as a runtime modification tool that uses hook injection to alter application elements and logic. The project provides system-level ad blocking to remove promotional content from feeds, search results, comments, and startup screens. It includes a rule-based content filtering engine that uses keywords and regular expressions to hide specific post types, such as videos and articles, or social features. The module offers interface customization and navigation enhanc

uillayouts is a comprehensive design system consisting of interactive components, responsive templates, motion-enhanced UI kits, and advanced visual effect toolkits. It provides a collection of accessible React UI components and pre-designed layout sections for landing pages. The project is distinguished by a specialized visual effects library and motion-driven components. It features high-performance graphical enhancements such as glassmorphism, mesh gradients, noise overlays, and SVG masking, alongside interactive elements that utilize physics-based animations and cursor-tracking effects.

Animate Components is a motion framework that provides a collection of declarative primitives for managing visual transitions and animation sequences within web applications. It functions as a component-based library designed to standardize motion behavior, ensuring that interface elements move and transition consistently across different parts of a project. The library distinguishes itself through a framework-neutral architecture that bridges animation logic with various component models. By utilizing a declarative interface, it allows developers to compose complex motion patterns and synchr

This project is a collection of high-fidelity UI kits, design pattern examples, and reusable component galleries for diverse device environments. It provides a frontend interface gallery of dashboard and store screens alongside a library of professional user interface implementations and reusable widgets. The repository functions as a cross-platform UI kit designed for mobile, web, and desktop environments. It includes specific code samples that demonstrate how to implement complex layouts and navigation patterns. The project covers the development of responsive interface layouts, stack-base

Nuxt UI is a comprehensive Vue component library built for the Nuxt ecosystem, providing over 125 production-ready, WAI-ARIA compliant components for building modern web applications. The library offers a complete design system with Tailwind CSS theming, supporting dark mode, custom color palettes, semantic color aliases, and runtime theme switching through CSS design tokens. It includes built-in internationalization for over 50 languages, server-side rendering compatibility, and a Figma kit that mirrors the code components for design-to-development consistency. The library distinguishes itse

Nimbus is an iOS UI framework and application toolkit providing a collection of reusable interface components and layout tools for building native mobile applications. It includes a SwiftUI component library and a structured interface design system for maintaining consistent styling across Apple platforms. The framework employs a declarative approach to visual formatting, using CSS-based component styling to define colors, fonts, and spacing. It further streamlines development through a component-based construction system and declarative style mapping. The toolkit covers a range of interface

This project is a Tailwind CSS landing page template and responsive marketing website kit. It serves as a React frontend starter providing a set of pre-designed marketing layouts and components for rapid website development. The kit includes an animated UI component library featuring scroll-triggered transitions and dynamic visual effects. It provides themed page templates and design source files for creating marketing sites, professional portfolios, community portals, admin dashboards, and technical documentation sites. The codebase covers a broad range of interface capabilities, including

This project is a collection of reference implementations and sample applications for Flutter. It provides practical examples covering API integration, user authentication, data persistence, and a gallery of UI patterns. The repository distinguishes itself by offering a wide array of functional demos, including implementations for Google and email-based identity verification, cloud database synchronization, and the use of both relational and key-value local storage. It also includes specialized utility examples such as expense tracking, tip calculation, and body mass index tools. The project

Motion Primitives is an animated UI kit and React animation component library designed as a web motion framework. It provides a collection of pre-built, customizable visual components used to implement complex interface animations and transitions within a browser environment. The library focuses on animated user interface design and frontend visual polish. It enables the development of interactive web components and rapid UI prototyping by providing reusable primitives that handle motion effects without requiring custom logic from scratch. The framework integrates Framer Motion for physics-b

CoreUI Free Bootstrap Admin Template is a pre-built, responsive admin dashboard template built on Bootstrap 5 for constructing back-office interfaces. It provides a library of UI components with native wrappers for React, Vue, and Angular applications, alongside a Sass-based theming system for managing brand colors, dark mode, and design tokens via variables and CSS custom properties. The template includes a set of advanced form controls such as autocomplete, date pickers, and multi-step wizards with built-in validation, and supports switching the entire interface between built-in dark and li

This project is a Chromium-based mobile browser and rendering engine designed for mobile platforms. It functions as a web extension host, allowing the execution of browser extensions within a mobile environment to provide custom functionality. The project distinguishes itself through custom user interface modifications, such as the implementation of a specialized night mode and the relocation of the address bar for improved ergonomics. It also includes a remote debugging interface and protocol that allow an external developer console to connect to a live browser instance for inspecting and tr

This is a React animation library providing a collection of components for creating choreographed motion, complex transitions, and SVG morphing. It functions as a motion design specification and a UI component animation wrapper system used to apply 3D transforms, Bezier curves, and entry-exit transitions to interface elements. The project includes a scroll-driven animation suite for synchronizing UI movements and parallax effects with the viewport position, as well as an SVG motion framework for animating paths, drawing lines incrementally, and interpolating coordinates for shape morphing. I

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