Open-source alternatives to Lenis

This project is a macOS input remapper and mouse customizer designed to assign custom actions and system-wide gestures to mouse button presses and movements. It functions as a mouse gesture manager and scroll enhancer, enabling the emulation of multi-finger trackpad motions and providing omnidirectional precision scrolling. The utility distinguishes itself by allowing independent scroll direction settings for a mouse without altering global trackpad configurations. It further implements a momentum-based algorithm to replace discrete scroll steps with smooth, fluid movement. The software cove

mini.nvim is a comprehensive library of independent modules designed to extend Neovim with a wide array of navigation, user interface, and text manipulation tools. It serves as a modular plugin collection, a UI toolkit for creating custom statuslines and notifications, and a package manager for installing and pinning external plugins from Git. The project provides a specialized fuzzy picker framework for filtering files and symbols, an LSP completion engine with interactive snippet expansion, and a dedicated plugin test framework that uses headless editor instances and remote procedure calls

fluttereasyrefresh is a library for implementing pull-to-refresh and infinite scroll pagination within Flutter list components. It provides the functional components and logic required to trigger data reloads via pull-down gestures and fetch additional data chunks through pull-up triggers. The project features a decoupled indicator architecture that allows for customizable visual styles, themed animations, and flexible positioning of headers and footers. It includes a centralized controller that enables the programmatic management of refresh and loading states independently of user gestures

AMScrollingNavbar is a Swift UI component and controller designed to synchronize the movement of a UINavigationBar with the scroll position of a UIScrollView. It acts as a navigation bar behavior modifier that allows the navigation bar to hide or reveal itself dynamically based on user scroll interactions. The project provides a mechanism to coordinate the movement of multiple interface elements, enabling supplementary views such as toolbars or tab bars to slide in synchronization with the navigation bar. It utilizes offset-based translation and customizable scroll speeds to control how quick

fullPage.js is a JavaScript full-screen scrolling library and layout engine used to create websites composed of vertical sections and horizontal slides that snap to the viewport. It provides a system for organizing web content into full-screen pages with automatic snapping behavior. The library distinguishes itself through a WebGL transition framework and visual storytelling tools, enabling cinematic effects such as 3D rotations, parallax backgrounds, fading, and water distortion during navigation. It also features a responsive adaptation system that can switch from automatic snapping to stan

Scroller is a JavaScript library for implementing pan-and-zoom interactions on HTML elements and Canvas rendering surfaces. It functions as a viewport state manager and kinetic scrolling engine that translates touch and mouse pointer events into scaled offsets for fluid navigation. The library features a kinetic motion system that simulates deceleration and edge bouncing. It includes specific mechanisms for pull-to-refresh triggers and supports point-relative zoom scaling to keep the focal point centered on the user's cursor. The system provides a range of movement controls, including axis-l

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

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

tcell is a Go terminal user interface library and framework for building cell-based applications. It functions as a terminal emulator backend and input processor, utilizing a change-based diffing engine to manage screen state and efficiently render updates. The project is distinguished by its pluggable backend abstraction, which allows terminal interfaces to be rendered across physical terminals or compiled into WebAssembly for web browser display. It provides a virtual screen simulation to enable programmatic event injection and output inspection for automated application testing. Its capab

Readest is a comprehensive digital reading platform designed to manage, annotate, and consume electronic books across multiple devices. It functions as a versatile library manager and reading environment, supporting a wide range of user needs from standard ebook consumption to specialized study and accessibility-focused workflows. The platform distinguishes itself through advanced features like parallel text study, which enables side-by-side document rendering with synchronized scrolling, and a robust text-to-speech engine that provides hands-free reading with synchronized visual highlighting

Hammer.js is a library for recognizing touch gestures in web applications. It functions as a unified interface that translates raw pointer, mouse, and touch inputs into a consistent stream of interaction data, allowing developers to detect patterns such as taps, swipes, and pans across different browsers and hardware. The library distinguishes itself through a modular architecture that uses configurable logic blocks to evaluate input streams against specific mathematical thresholds. It maintains an internal registry of active touch points to track complex multi-finger movements like pinching

Motion-vue is a declarative animation library for Vue that provides a framework for building fluid, high-performance user interface motion. It enables developers to define complex animation states and transitions using code-based variants and spring-driven physics, ensuring that visual updates remain synchronized with component lifecycles and application state. The library distinguishes itself through a layout projection engine that tracks element coordinates to animate transitions between layout states, and a gesture-driven input pipeline that maps pointer and scroll interactions to animatio

Fixed-data-table is a React component library designed for rendering large datasets within structured, scrollable grid interfaces. It functions as a virtualized table, optimizing performance by rendering only the rows currently visible within the viewport. The library distinguishes itself through its focus on maintaining context during navigation, utilizing fixed-header layouts and synchronized scroll state management. It employs index-based data access to map information to specific grid coordinates, allowing for modular cell customization and flexible column configuration. The component su

Skrollr is a dependency-free scroll-driven animation engine and cross-platform frontend library. It functions as a toolkit for linking CSS properties and HTML attributes to scroll positions to create synchronized animations, specifically providing utilities for the interpolation of SVG attributes. The library enables the creation of parallax scrolling and interactive web storytelling by mapping scroll offsets to specific style values. It allows for the development of non-linear movement and dynamic SVG effects through the use of custom HTML attributes that define keyframes. The system covers

This project is a frontend component designed to manage dynamic content loading and scroll-based interactions within web applications. It provides a reusable interface for handling data injection as users navigate through scrollable areas, ensuring that content updates occur automatically based on scroll position or manual user triggers. The component distinguishes itself by supporting both standard downward infinite scrolling and inverse scrolling, which allows for the natural expansion of content history in chat-like interfaces. It offers developers full control over the visual presentation

React Scroll Parallax is a component library and JavaScript animation tool for creating scroll-driven visual effects and layered depth in web applications. It supplies shared scroll metrics and controller access down the component tree through context providers, applying hardware-accelerated style changes such as translation, rotation, and opacity to animate elements. The system tracks element positions relative to viewport boundaries to calculate continuous scroll ratios while batching calculations to sync with browser refresh rates and automatically recomputing layouts during dynamic content

This project is a comprehensive library of reusable React hooks designed to simplify browser API integration, state management, and component lifecycle tracking. It provides a declarative interface for managing complex browser interactions, allowing developers to encapsulate imperative logic into modular, composable functions that integrate directly with the component lifecycle. The library distinguishes itself by offering specialized utilities for asynchronous data orchestration, including built-in caching, retry logic, and loading state management. It also features advanced performance opti

This project is a modular toolkit for building accessible, component-based drag-and-drop interfaces in React. It provides a foundational framework for managing complex spatial interactions, state synchronization, and element registration, allowing developers to create interactive web applications that support mouse, touch, and keyboard inputs. The library distinguishes itself through a highly extensible architecture that separates input handling from interaction logic. It utilizes a sensor-based input abstraction to normalize diverse user interactions and a plugin-driven lifecycle to inject c

Motion Canvas is a TypeScript-based framework for creating programmatic animations and motion graphics. It functions as a code-based animation tool that allows developers to define visual transitions, element properties, and timing through scripts rather than traditional timeline-based interfaces. The library renders frame-accurate motion graphics directly in the browser using web technologies. The project utilizes a virtual scene graph to manage visual objects and their transformations, which are then rendered to an HTML5 canvas. It employs generator functions to sequence animations and reac

Walkway is a web animation framework and library designed for creating and managing drawing animations on SVG paths, lines, and polylines. It functions as a utility for executing geometric line animations within a browser, providing a system to control the playback state and timing of vector graphics. The library allows for the configuration of custom durations and easing functions to control the visual flow of drawings. It manages animation states through a system that can trigger sequences via callbacks and pause progress when the browser window loses focus. The framework covers high-level

ScrollReveal is a JavaScript library designed to manage scroll-triggered visual transitions for web elements. It functions as a framework for tracking element visibility relative to the browser viewport, allowing developers to apply declarative animation sequences as users scroll through a page. The library provides centralized control over motion design by maintaining a global configuration registry that merges with local element settings to ensure consistent behavior. It distinguishes itself through its lifecycle management capabilities, which include the ability to stagger the reveal of mu

This library provides a directive-based solution for implementing infinite loading patterns within Angular applications. It monitors scroll positions to trigger data fetches when users reach defined distance thresholds, facilitating the continuous loading of content as users navigate through an interface. The implementation decouples scroll tracking from specific elements, allowing it to function with both window-level scrolling and individual overflow-hidden containers. It integrates native browser scroll events into reactive streams and applies throttling logic to manage event frequency, en

Rellax is a dependency-free vanilla JavaScript library and frontend utility used to create parallax web design effects. It functions as a scroll-based animation tool that moves page elements at different speeds to produce a sense of depth and layered motion. The library supports both vertical and horizontal parallax tracking for panoramic layouts and allows for motion speed control. It includes breakpoint-aware speed mapping to adjust movement based on screen width and provides viewport centering to position elements relative to the center of the screen. Beyond basic motion, the tool manages

Bytebot is an LLM desktop automation framework and virtual Linux desktop environment. It enables AI agents to plan and execute mouse and keyboard actions on a virtual computer using natural language, allowing for autonomous desktop automation and the integration of legacy systems that lack native APIs. The system operates as an LLM API gateway and a Model Context Protocol server, routing requests across multiple language model providers with integrated load balancing and rate limiting. It provides isolated, containerized environments where agents use visual reasoning to interpret screenshots

SwifterSwift is a collection of Swift extensions designed to reduce boilerplate code during the development of iOS and macOS applications. It provides a library of pre-made utilities that extend the standard library and system frameworks to streamline data manipulation, system integration, and user interface optimization. The project provides specialized tools for a wide range of development tasks. This includes image processing and binary translation, text string manipulation, and complex data management for arrays, strings, and dictionaries. It also offers utilities for network request mana

Lax.js is a lightweight JavaScript library designed for creating scroll-driven animations and interactive motion effects on web pages. It functions as a frontend interaction framework that enables developers to apply dynamic visual transformations to elements as they enter or exit the viewport. The library distinguishes itself by decoupling animation logic from core scripts through a declarative mapping system that utilizes data attributes. It processes scroll progress through a functional pipeline, mapping vertical offsets to specific CSS property ranges using linear interpolation to ensure

This project is a cross-platform UI library for React Native designed to build messaging interfaces. It provides a comprehensive set of specialized components, including message bubbles, input toolbars, and layout containers, to facilitate the development of chat applications on iOS and Android. The library distinguishes itself through a highly flexible configuration interface that allows developers to override default elements and styling to meet specific branding requirements. It includes built-in support for complex interaction patterns such as swipe-to-reply gestures, quick-reply buttons,