Open-source alternatives to Fastclick

Fixed-nav is a client-side JavaScript library for building responsive, touch-friendly navigation menus on single-page websites. It pins navigation bars to the screen viewport so control interfaces remain persistently accessible as users scroll through long content. The library automatically monitors scroll positions against document boundaries to highlight active section indicators in real time. When navigation links are selected, it animates viewport transitions to target sections using hardware-accelerated timing functions instead of abrupt jumps. Additional capabilities include dimming ba

body-scroll-lock is a DOM scroll locking library and cross-browser scroll controller. It provides utilities to disable page scrolling while maintaining scrollability for specific nested elements across different browsers and devices. The project functions as a layout shift prevention utility and a web UI modal scroll manager. It includes mechanisms to add padding to the body when scrollbars are removed to prevent horizontal flickering and content shifting. The library covers scroll management for mobile navigation and modal interactions, enabling specific containers to remain scrollable whil

BGARefreshLayout-Android is a layout library for Android applications that implements pull-to-refresh and pull-up-to-load-more patterns. It serves as a specialized view container and list loading framework designed to manage loading indicators and status text during data fetching operations. The library distinguishes itself by supporting a customizable view hierarchy that allows for the integration of a dedicated advertisement space at the top of the layout, positioned above the scrollable content. It provides a view holder system that enables the creation of bespoke visual effects and animat

mui is a mobile UI component framework and native-like web UI kit designed for building high-performance mobile web interfaces. It functions as a mobile web performance framework and gesture-based interface library to eliminate browser lag and mimic the behaviors and animations of native mobile applications. The framework focuses on implementing common mobile UX patterns, including pull-to-refresh functionality, swipe-to-action menus, and sliding side navigation. It provides specialized tools for gesture-driven interface development to ensure an immediate visual response to touch interactions

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

SwipeBackLayout is an Android gesture navigation library and view component designed to implement edge-swipe gestures for navigating back to previous screens. It provides the underlying logic and layout management necessary to integrate horizontal swipe transitions into an application's screen stack. The library utilizes a custom layout manager to coordinate the simultaneous movement of foreground and background views. It maps horizontal touch offsets to the translation and opacity of view hierarchies, using interpolation to calculate visual progression based on the swipe percentage. The sys

SwipeDelMenuLayout is an Android gesture interaction library that provides a swipe-to-reveal layout container. It allows developers to add slide-out action menus to list items by wrapping existing layouts in a specialized container without modifying the underlying view structure. The library includes a diagnostic performance monitor that hooks into the system display pipeline to detect frame drops and identify janky animations. It manages interaction coordination through velocity tracking and touch event interception to prevent conflicts between child menus and parent scrolling views. The co

React Native Gesture Handler is a declarative library that exposes the platform's native touch and gesture system to React Native, enabling smooth, deterministic gesture handling on the UI thread. It manages gesture recognition through a native state machine with defined transitions between states like BEGAN, ACTIVE, END, and CANCELLED, routing touch events through platform-native gesture recognizers on both iOS and Android. The library provides a comprehensive gesture composition framework that allows developers to combine multiple gestures into race, simultaneous, or exclusive sequences, co

Telegraf is a Node.js framework and typed API wrapper for building interactive chat agents on the Telegram platform. It provides a structured environment for developing automated agents that interface with the Telegram Bot API to process and respond to user messages. The framework uses a middleware-based request router to process incoming events through a customizable chain of handlers. This architecture allows for dynamic command routing and the use of a context-object pattern to pass updates and API methods through the processing pipeline. The system supports multiple event delivery method

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

This project is a JavaScript analytics integration library and client-side event collector designed to record user behavior and distribute that data to multiple third-party analytics destinations through a unified interface. It functions as a customer data platform that identifies users, manages traits, and routes event streams to various analytics tools and data warehouses. The library distinguishes itself through a multi-destination event router and HTTP tracking middleware that intercepts and modifies event payloads before transmission. It implements identity management primitives for user

Flukit is a suite of functional toolkits for Flutter, providing animation wrappers, layout debugging tools, scroll interaction kits, and a library of reusable UI components and visual utilities. The project distinguishes itself through a dedicated layout debugging tool for inspecting parent constraints and capturing system logs directly within the interface. It also provides specialized animation wrappers for rotating, scaling, and sliding child components and a scroll interaction kit that includes pull-to-refresh mechanisms, carousel swipers, and flexible sliver headers. The library covers

Telebot is a framework for building interactive bots using the Telegram Bot API. It provides a type-safe API wrapper and an asynchronous event handler to manage messages, commands, and user interactions. The project features a middleware-based request interception system and pattern-based event routing to map triggers to custom logic. It includes a dedicated inline query engine for generating real-time suggested results and an interactive keyboard builder for creating custom reply and inline buttons. The framework covers a broad range of capabilities, including rich media management for albu

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

TwinklingRefreshLayout is a pull-to-refresh layout for Android that provides a scrollable container for implementing refresh and load-more functionality. It acts as a view wrapper for components such as RecyclerView, ScrollView, and WebView to ensure consistent refreshing and loading behaviors across different scrollable views. The project distinguishes itself through an overscroll rebound component that creates an elastic bouncing animation when users scroll past layout boundaries. It includes a system for custom refresh indicators, allowing header and footer views to animate their visual st

KineticJS is an HTML5 Canvas JavaScript framework and 2D graphics engine. It provides a system for building interactive user interfaces and 2D graphics by managing a scene graph of elements with dedicated rendering and event propagation. The framework functions as a canvas interaction library that adds event handling to canvas-based applications for desktop and mobile devices. It includes a server-side canvas renderer, allowing graphics to be drawn and rendered in a server environment.

QAuxiliary is a messaging app configuration tool and OICQ protocol extension. It functions as a notification manager for OICQ compatible messaging clients, providing a specialized interface to refine how these communication clients handle incoming alerts. The project focuses on enhancing legacy chat clients and customizing ICQ messaging behavior. It provides a dedicated settings system to manage and customize notification behaviors, allowing users to control how alerts are delivered and displayed to reduce noise.

This project is a web development boilerplate and starter kit providing a pre-configured foundation for creating high-performance, responsive websites. It functions as a development kit for building progressive web apps, incorporating a front-end build pipeline and responsive site templates. The kit distinguishes itself through a multi-device testing workflow that synchronizes clicks, scrolls, and form inputs across multiple browsers and devices in real-time. It also includes a dedicated setup for offline functionality using service workers and web manifests to enable native-like installation

Eruda is a mobile browser developer console that provides a web-based inspector for debugging HTML pages and viewing logs directly on mobile devices. It functions as a browser element inspector for analyzing DOM and CSS styles and an in-page JavaScript console for executing code and monitoring runtime errors on devices that lack native developer tools. The project enables mobile web debugging and on-device element inspection without requiring a connection to a desktop computer. This allows for the evaluation of web applications on actual mobile hardware and the troubleshooting of remote sites

Slideout is a touch-gesture UI component and navigation menu designed for mobile web applications. It provides a side panel that slides across the screen to reveal navigation options, utilizing CSS transitions to animate the movement of the viewport. The component manages the expanded or collapsed state of the navigation menu and includes logic to restrict gestures for specific interface elements to prevent interaction conflicts. It employs a system for executing custom logic triggered by menu state transitions and user drag gestures.

Swiper is a modular, touch-enabled library designed for building interactive content carousels and sliders for web and mobile applications. It provides a high-performance rendering engine that manages large datasets by dynamically creating and destroying elements based on their proximity to the viewport, ensuring memory efficiency and smooth operation. The library distinguishes itself through a plugin-based architecture that allows developers to include only the specific functionality required for their project, effectively minimizing bundle sizes. It features a hardware-accelerated animation

:electric_plug: Everything you need to know to create offline-first web apps.

Add shiny reflections to text, backgrounds, and borders on devices that support the DeviceMotion event.

lozad.js is a JavaScript lazy loading library and viewport-based media loader. It serves as a dependency-free wrapper around the Intersection Observer API to defer the loading of images and iframes until they enter the browser viewport. The project functions as a responsive image loader that optimizes page speed by delivering the most appropriate image sizes and formats based on the user's screen. It includes capabilities for responsive image optimization and layout stabilization through the use of image placeholders to prevent content shifts. The library manages the full lifecycle of deferr

react-dates is a set of React components for date selection, providing interfaces for picking single dates or date ranges through controlled input components and calendars. The project features built-in support for internationalization, allowing date formats and interface strings to be translated via locale settings. It also supports visual customization through theme registration and CSS overrides to match specific application styles. The component suite covers a variety of selection workflows, including calendar range selection and date range input fields.

interact.js is a JavaScript interaction library used to implement drag and drop, resizing, and multi-touch gestures within web browsers. It provides a specialized interaction framework for scalable vector graphics, allowing these elements to be moved and resized. The library features a multi-touch gesture engine that recognizes complex patterns such as pinch and rotate, and a coordinate snapping engine for aligning elements to grids or restricting movement within boundaries. It also includes a cross-frame state synchronizer to share interaction states and input events across multiple browser