Open-source alternatives to FlatUIKit

This is a layout library for Android applications that implements the CSS Flexible Box layout model. It provides a view container and engine that arrange child views by distributing space and aligning content according to a flexible box model. The framework enables the creation of responsive user interfaces that automatically adjust element positioning, wrapping, and growth based on available screen dimensions and orientations. The system includes capabilities for adaptive layout workflows, dynamic element alignment, and a virtualized rendering system for recycling views to display large dat

NativeScript is a cross-platform mobile development framework that enables the creation of native iOS and Android applications using JavaScript or TypeScript. It provides a direct bridge to native platform APIs, allowing developers to invoke native classes, methods, and properties directly from script code while maintaining full access to underlying mobile operating system features. The framework distinguishes itself through its direct native UI rendering, which maps declarative markup components to actual platform-native widgets rather than web-based views. This architecture is supported by

Bootstrap is a comprehensive, mobile-first CSS framework designed for building responsive web interfaces. It provides a standardized library of reusable UI components, such as navigation bars, modals, and forms, alongside a robust grid system that ensures consistent layout alignment across diverse viewport sizes. By establishing a baseline through browser normalization and standardized typography, the project enables developers to create accessible, cross-browser compatible web applications. The framework distinguishes itself through a modular Sass-based architecture that allows for deep cust

This project is a community-maintained open source directory that serves as a comprehensive index of React components and libraries. It functions as a technical knowledge base, mapping common development challenges to vetted third-party solutions to help developers accelerate their frontend workflows and avoid reinventing standard interface elements. The directory distinguishes itself through a decentralized, hyperlink-centric architecture that avoids hosting code locally, instead pointing users directly to external repositories. This content is curated through a collaborative model where com

QMUI_iOS is an iOS development framework that extends standard UIKit components and provides a unified theme configuration system for faster app development. It functions as a collection of ready-made tools for device information, dynamic type, keyboard management, and status bar handling, while also offering a configuration system that adjusts an app's entire visual style—colors, navigation bars, inputs, and lists—from a single table. The framework differentiates itself by reading the device model locally to apply compatibility measures without uploading device information, and by providing

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

HMSegmentedControl is a customizable, scrollable selection interface for iOS applications. It serves as a UIKit component that replaces standard system segmented controls to provide a selection bar capable of switching between different views or data sets. This component is distinguished by its support for horizontal overflow scrolling, which allows users to pan through selection options when the number of segments exceeds the available screen width. It provides precise control over the visual identity of the interface through custom fonts, colors, and text attributes. The library covers the

PopupDialog is a Swift UI component library for iOS that provides a custom modal overlay system. It serves as a flexible replacement for the standard system alert controller, allowing for the creation of stylized popups and alerts with custom layouts. The library distinguishes itself through the ability to embed arbitrary view controllers directly into the dialog body. It includes a centralized theme configuration system to maintain consistent visual styles for containers, overlays, and buttons across an entire application. The project covers a broad range of layout and behavioral controls,

NJKWebViewProgress is an iOS web view UI component and loading monitor designed to track and visually represent the loading state of web pages within a mobile application. It functions as a progress indicator that monitors browser activity to provide real-time feedback on page load completion. The project integrates with embedded web content to drive numerical loading values and visual indicators, such as loading bars, to manage the user interface during the page load process. The implementation relies on delegate callbacks and key-value observing to monitor the underlying web view state and

JVFloatLabeledTextField is a reusable UIKit component for iOS that provides a text input field with a floating label. It animates the placeholder text into a hovering label when the field is focused or contains text, maintaining visual context for the user during data entry. This library functions as a programmable interface element for native applications developed with Swift and Objective-C, specifically designed to implement modern mobile form design patterns. The component manages these interactions through a combination of state-driven label transitions and constraint-based layout anima

MGSwipeTableCell is an iOS mobile UI library providing a custom UIKit table view cell subclass. It is a swipeable UI component designed to implement swipe-to-action patterns within native Apple mobile applications. The library enables the creation of interactive table cells that reveal hidden buttons through horizontal swipe gestures. It includes expandable swipe action triggers that execute specific events when a gesture exceeds a defined distance threshold. The component covers mobile UI gesture integration and table view customization, utilizing coordinate-based layout mapping and state-b

tapkulibrary is a collection of reusable user interface elements and layout utilities for building native iOS applications. It provides a modular set of building blocks, including a custom graphics framework, networking toolkits, and specialized interface components. The library includes a dedicated media gallery component for creating 3D perspective coverflow galleries and swipeable lists, as well as a grid-based calendar interface for monthly event layouts and date selection. The toolkit covers asynchronous network communication, allowing for data request scheduling on background threads.

raygui is a C graphics interface toolkit and immediate mode GUI library used for building interactive utility panels. It functions as a themed UI framework that renders interface controls instantly based on application logic without maintaining persistent state. The toolkit includes a visual layout designer for managing icon sets and defining styles. It supports the application of custom themes and font data through binary files or embedded headers to modify the appearance of the interface. The library provides standard interface controls such as buttons, sliders, and color pickers, along wi

XLPagerTabStrip is a navigation component for iOS that synchronizes a tabbed menu with a swipable view controller pager. It functions as a gesture-based view switcher, allowing users to navigate between different screen views through either direct tab selection or horizontal swipe gestures. The project provides a wrapper for segmented controls and other tab indicator styles to manage the switching of multiple child views. It supports various tab indicator styling options, including button bars and simple indicator bars, and allows for the configuration of tab transition behaviors. The system

This project is a framework of reusable UI components and extensions designed to integrate structured input and selection menus into native iOS alert controllers. It provides a library of customizable text fields and specialized picker interfaces that embed directly within system alert dialogs. The framework distinguishes itself by injecting external view controllers into alert containers, enabling the use of complex interfaces such as maps and date pickers. It also includes specialized integration tools to embed selection interfaces for photos, contacts, and locations directly from the Teleg

JDStatusBarNotification is a Swift notification banner library and iOS UI component designed to display customizable alert banners and progress indicators below the status bar and notch. It provides an interactive notification interface that supports a Swift-Objective-C compatible framework for integration into various mobile projects. The library differentiates itself through an interactive notification UI that supports drag-to-dismiss gestures and dynamic layout configurations. These capabilities allow for the manual removal of alerts via interruptible gestures and the real-time adjustment

FSCalendar is a customizable calendar UI library and date picker component for iOS applications. It provides a programmable interface for rendering date grids and event markers, supporting both Swift and Objective-C development. The library enables the creation of custom date picking interfaces with specific range restrictions and selection rules. It supports the display of date-based metadata and event visualization within a mobile scheduling context. The framework covers visual styling and cell design, allowing for custom view components, subtitles, and event markers. It includes a flexibl

SCLAlertView-Swift is a Swift UI component and animation library used to create customizable alert views for iOS. It provides a visual interface for notifying users of system events, errors, or successes within mobile applications. The library focuses on implementing animated transitions and polished dialogs that deviate from standard native alerts. It includes tools for building animated alert views to provide user feedback through visual transitions.

ShowcaseView is an iOS UI overlay library and user onboarding framework. It provides a customizable feature highlight component designed to visually isolate and emphasize specific buttons or sections of a mobile user interface. The library enables the creation of interactive product tours and in-app feature discovery by drawing attention to specific interface elements. It allows for the customization of highlight appearances, including colors and shapes, to match the visual theme of the application. The framework manages the user onboarding experience by highlighting UI elements and guiding

SDCycleScrollView is an iOS carousel UI component that provides a looping scroll view for displaying images or text in a continuous horizontal or vertical sequence. It functions as an infinite scroll view that automatically cycles through content items at set intervals. The component includes a page control navigation indicator to show the current position within a loop using customizable dots or images. It supports customizable carousel content through custom cell layouts and associated title arrays. The tool manages scroll behavior through controls for scrolling directions and the ability

SlackTextViewController is a specialized iOS user interface framework and UIKit text input component designed for markdown editing and messaging input management. It provides a view controller subclass that bundles text input logic and layout management into a reusable component for iOS applications. The framework implements specific messaging interface behaviors, including inverted scroll layouts that anchor content from the bottom up and animated typing indicators. It supports a rich text input workflow with markdown formatting, prefix-based autocompletion, and the ability to insert images

RESideMenu is an iOS side menu component and user interface framework element used to implement the side-drawer navigation pattern on Apple mobile devices. It provides a sliding side panel that organizes top-level application sections and navigation links. The component specifically implements a parallax navigation menu, which shifts content layers at different speeds to create a sense of depth during transitions. This allows for the creation of a sliding menu that moves content visually when controllers are opened from either side of the screen. The system manages the interface through gest

DGElasticPullToRefresh is a Swift pull-to-refresh component for iOS that provides a bouncy, elastic animation effect for scrolling lists. It serves as a specialized table view extension that triggers content updates via a downward swipe gesture. The component uses bezier paths and spring physics to render curved visual elements, simulating a flexible stretching effect during user interaction. This physics-based approach governs the movement and bounce of the interface to create a fluid feel. The system manages gesture-driven states and coordinate transformations to shift the view hierarchy.

Revery is a cross-platform GUI toolkit and functional UI framework used to build native desktop applications for Windows, macOS, and Linux. It utilizes the Reason functional programming language to compile code into machine-level instructions for native execution. The framework employs a component-based model to manage user interfaces, mapping functional components to the underlying native operating system widgets. This approach ensures that applications maintain native performance, behavior, and a consistent look and feel across different operating systems. The toolkit covers the full appli

Flat Color Icons is a comprehensive library of scalable vector graphics and flat-style illustrations designed to maintain visual consistency across digital and print platforms. The collection provides high-quality symbols and icons in standard formats, enabling developers and designers to integrate professional visual assets into web, mobile, and desktop interfaces. The project distinguishes itself by offering a wide range of customization and integration capabilities, including an online editor for modifying colors and rearranging graphic components. It supports dynamic workflows through URL

AsyncDisplayKit is an asynchronous UI framework and performance library for iOS. It provides a collection of performant alternatives to standard views, allowing developers to build responsive interfaces by offloading layout and rendering tasks to background threads. The framework is centered around a declarative layout engine based on a flexbox model, which calculates element positions and sizes asynchronously. It utilizes a node-based abstraction to wrap native views, enabling the instantiation and configuration of UI hierarchies on background threads to prevent main thread blocking. The sy

LTNavigationBar is an iOS navigation bar customizer and wrapper designed to modify the colors and visual behavior of system navigation bars during runtime. It serves as a user interface component for managing the appearance of top-level application navigation. The library enables dynamic interface styling and navigation bar management, allowing for the modification of the system navigation bar to match custom application designs. This includes updating visual properties and layouts in real time based on the application context.