Open-source alternatives to FastDev4Android

UltimateRecyclerView is an advanced list component for Android that provides built-in support for animations, sticky headers, and pull-to-refresh. It functions as a specialized set of UI elements designed to handle draggable, expandable, infinite-scrolling, and swipeable list interfaces. The project includes a draggable list manager for reordering items through drag-and-drop interactions and an expandable list component for toggling additional item details. It implements a swipe-to-dismiss interface for item removal and a list controller that enables infinite scroll pagination by triggering d

Nonebot2 is an asynchronous Python framework for building event-driven chatbots across multiple messaging platforms. It centers on a non-blocking event bus and a driver-based adapter system that unifies different messaging protocols into a single consistent interface. The framework utilizes a modular plugin architecture, allowing for the discovery and loading of third-party extensions to add new event handlers and system capabilities. It distinguishes itself with a type-annotation based dependency injection system that automatically resolves and provides required service objects to handlers a

This project is a reference Kotlin Android application template and a set of sample implementations demonstrating Clean Architecture principles. It provides a structural design that isolates core business rules from the user interface and data sources into distinct, layered modules. The implementation focuses on the Model-View-ViewModel (MVVM) pattern to decouple UI logic from data models. It utilizes a dependency injection framework to automate object creation and manage component lifecycles, while employing a repository pattern to abstract data requests across memory, disk, and cloud source

Prism is a XAML application framework and MVVM architectural framework designed to build loosely coupled and testable applications across WPF, Xamarin Forms, and WinUI. It serves as a structural pattern implementation that separates business logic from the user interface to improve maintainability and testing. The framework provides a XAML event bus for exchanging data and triggering actions between independent components without direct coupling. It also functions as a dependency injection integrator, bridging external inversion-of-control containers to manage service delivery across multiple

A collection of iOS components.

This project provides a set of development guidelines and architectural recommendations for building iOS applications. It focuses on structuring Swift applications to decouple business logic from the user interface to improve testability and maintenance. The project covers specific implementation standards for security, such as using keychain storage for sensitive data and TLS certificate pinning for network traffic. It also defines patterns for code quality enforcement through static analysis and compiler configurations, as well as strategies for asset and localization management. The guide

This framework provides a structured implementation of the Model-View-Intent pattern for Android applications. It enforces a unidirectional data flow where user intents trigger state updates, which are then propagated through reactive streams to ensure consistent and predictable interface rendering. The architecture relies on immutable state objects to represent application data, ensuring that updates are handled as complete replacements rather than partial modifications. By leveraging Kotlin Coroutines and reactive stream primitives, the framework coordinates asynchronous background tasks an

SwipeRecyclerView is an Android library that extends the standard RecyclerView with swipeable action menus, drag-and-drop item reordering, and swipe-to-delete gesture detection. It provides a complete set of interactive list behaviors that let users reveal contextual buttons by swiping list items left or right, rearrange items by long-pressing and dragging them to new positions, and remove items with a horizontal swipe gesture that automatically updates the underlying data model. The library distinguishes itself by combining multiple interaction patterns into a single, cohesive component. It

Hutool is a comprehensive suite of Java extensions designed to serve as a standard library extension. Its primary purpose is to reduce development boilerplate for common programming tasks and data manipulation through a collection of utility classes. The project provides specialized toolkits for database management using active record patterns and connection pooling, as well as network communication via a simplified HTTP client and asynchronous socket management. It includes security and identity capabilities such as symmetric and asymmetric encryption, image captcha generation, and JWT token

This repository provides a comprehensive collection of functional code samples designed to demonstrate modern development patterns and architectural practices for the Android platform using Kotlin. It serves as a practical guide for implementing standard design patterns that decouple business logic from user interface components, ensuring that applications remain maintainable and testable. The project distinguishes itself by offering isolated, hands-on implementations of complex mobile programming tasks. It covers a wide range of capabilities, including asynchronous networking, local database

Hazelcast is a distributed data platform that combines an in-memory data grid with a stream processing engine to support real-time analytics and event-driven applications. It functions as a partitioned, distributed key-value store that replicates data across cluster nodes to provide low-latency access and high availability. The platform also serves as a distributed SQL query engine, allowing users to execute standard SQL statements against both in-memory datasets and external data sources. What distinguishes Hazelcast is its use of a distributed consensus subsystem to maintain strongly consis

Firefox is a cross-platform web browser engine designed to render web content, execute JavaScript, and manage secure browsing sessions. It utilizes a multi-process isolation architecture that distributes browser tasks across independent operating system processes to ensure stability and prevent site-specific failures from impacting the entire application. The engine incorporates a sandboxed execution environment to restrict web content and untrusted scripts to isolated memory compartments, enforcing security policies that prevent unauthorized access to system resources. The project distinguis

Flutter Deer is a Flutter practice project that demonstrates realistic application patterns across Android and iOS. It showcases how to structure a Flutter app with modular routing, reactive state management using Provider, and a centralized network layer built with Dio for structured API calls and error handling. The project also includes integration and accessibility testing that simulates real user interactions to verify UI behavior and screen-reader compatibility. The project differentiates itself by providing a comprehensive showcase of custom UI components and interactions, including ca

jsqrcode is a JavaScript library for decoding QR codes within a web browser. It functions as a QR code scanner and decoder capable of extracting encoded text and data from various visual sources. The library supports data extraction from static images via URLs and data URLs, as well as from canvas elements. It also provides real-time scanning capabilities by processing live video streams from a device camera through the media devices API. Its internal processing covers pattern detection, pixel sampling, and binary-matrix decoding. It utilizes Reed-Solomon error correction to recover missing

mescroll is a JavaScript infinite scroll library and mobile web scroll manager designed to implement pull-to-refresh and pull-up-loading patterns. It provides a system for handling touch-based scrolling, managing pagination states, and integrating these behaviors within Vue applications. The library distinguishes itself through specialized support for chat interfaces, enabling reverse-order data loading and the ability to inject data in a reverse direction to simulate message histories. It also includes a state-persistent scroll cache to preserve vertical offsets and list data when users navi

CoordinatorTabLayout is a custom Android user interface component that integrates tabbed navigation with folding headers and paging container synchronization. Built for the native Android view system, it implements Material Design patterns to create immersive screens where header content collapses as the user scrolls. The component synchronizes tab selection events with a paging container to update visible content. It manages the coordination between a tab navigation bar and a folding header, ensuring that scrolling events and page transitions remain aligned. The layout includes capabilities

Taiga UI is an Angular UI component library and accessible design system used for building enterprise web interfaces. It provides a comprehensive collection of reusable interface elements and layout tools, functioning as a mobile-first UI kit with responsive components that adapt to different device capabilities. The library distinguishes itself through an integrated data visualization library featuring various chart types and a dedicated form management framework with built-in validation and formatting for specialized data. It also features AI-driven development workflows by integrating comp

Converse.js is an embeddable, self-hosted XMPP chat client that runs entirely in the browser. It communicates with XMPP servers using standard XML stanzas over WebSocket or BOSH transports, and provides end-to-end encryption through the OMEMO protocol with double ratchet algorithm and X3DH key exchange. The client is built on a plugin-based architecture that allows extending core functionality at runtime without modifying the client itself, and uses a DOM-based rendering approach with an event-driven message bus for internal coordination. The client manages message history through XEP-0313 Me

XUI is a native Android UI framework and component library designed for building application interfaces. It provides a comprehensive suite of native layouts, input fields, and navigation elements, supported by a tiered theme management system for defining global visual attributes and responsive styles. The framework distinguishes itself through a specialized set of custom views and interaction toolkits, including high-performance calendars, data visualization rendering, and a variety of stylized buttons with integrated timers and visual effects. It also includes integrated media processing ca

Vue Native is a framework that compiles Vue.js single-file components into React Native primitives, enabling developers to build native iOS and Android applications using Vue syntax. At its core, it provides a build-time compiler that transforms Vue components into React components, while hooking Vue's dependency-tracking reactivity system into React's component lifecycle to trigger re-renders when observed data changes. The framework wraps React Native's native module bridge so Vue components can access device APIs through Vue's reactivity system, and maps Vue's component syntax to React Nat

This project is a collection of reference implementations, sample code, and starter kits for integrating Firebase backend services into web applications using the JavaScript SDK. It serves as a practical guide for bootstrapping projects with cloud-hosted authentication, databases, and serverless logic. The repository provides specific examples for implementing real-time data synchronization, user identity management, and event-driven cloud functions. It also includes reference code for using local service emulators to test cloud functionality on a local machine before production deployment.

Livewire is a full-stack framework for PHP that enables the development of reactive, dynamic user interfaces using server-side classes and templates. By bridging the gap between server-side logic and client-side DOM updates, it allows developers to build interactive web applications without writing custom JavaScript. The framework operates as a component-based library, where modular units encapsulate interface logic, state, and event handling directly on the server. The framework distinguishes itself through a reactive architecture that automatically synchronizes state between the browser and

This is an Android pull-to-refresh library and custom view component designed to implement refresh interactions across any Android view. It functions as a gesture interaction tool that manages pull-down motions and touch conflicts to trigger data loading operations. The library provides tools for creating custom refresh headers and indicator visuals, utilizing a path-based animation engine to produce non-linear visual transitions. It includes mechanisms to define specific trigger thresholds through height ratios and user release events. The project covers gesture management and touch interac

LoopBack Next is a Node.js API framework used for building REST and multi-protocol APIs. It functions as an OpenAPI server implementation that can either generate machine-readable specifications from code or produce implementation controllers and models from existing specifications. The framework distinguishes itself through a central dependency injection container and a repository-pattern data access layer. This architecture decouples application logic from component construction and persistent storage, allowing for a pluggable system where data sources and business logic are isolated throug

Android-PullToRefresh is an Android view component and library designed to implement pull-to-refresh functionality and end-of-list detection for scrollable views within Android applications. It acts as a custom view that manages the animations and listener triggers necessary to update content via user interaction. The library provides mechanisms for triggering refresh actions when a user pulls from the boundaries of a scrollable view and detecting when a user reaches the bottom of a list to facilitate data pagination. It allows for the customization of the refresh indicator's visual theme and

Autofac is a dependency injection framework and inversion of control container for .NET. It functions as a component registration engine that decouples class implementations from their dependencies by injecting required services via constructors or properties. The project includes an assembly scanning library to automatically discover and register components within compiled binaries based on specific type criteria. It provides a service lifetime manager to control object memory duration using singletons, instance-per-dependency, or isolated request scopes. The framework covers a broad range

Awilix is a JavaScript dependency injection framework and inversion of control container. It provides a centralized system for registering and resolving services, decoupling application components by automating how dependencies are created and passed to the functions or classes that require them. The framework features an automatic module loader that scans the filesystem using glob patterns to register dependencies based on filenames and exports. It supports parameter-name-based injection and proxy-based resolution to manage how dependencies are delivered to constructors and functions. The s