30 open-source projects similar to ifttt/jazzhands, ranked by shared indexed features. Tags may describe platforms or build tools rather than the same primary purpose. Check each project’s use case, license, and deployment requirements before treating it as a replacement.
This is a personal portfolio website that uses scroll position to drive complex SVG scene animations, creating an interactive storytelling experience. The project is built around a scroll-synchronised animation controller that maps user scrolling to a timeline of interpolated state changes across a directed graph of visual elements, enabling fluid scene transitions. The site features a real-time animation state debugger that overlays a live HUD showing timing, active elements, and scene breakdown, with console commands for scene jumping and state export. It also includes a gradient-preserving
laxxx is a lightweight JavaScript framework for creating scroll-driven animations and DOM element bindings. It functions as a CSS interpolation engine and animation utility that maps numeric driver values to HTML attributes and styles in real time. The framework specializes in linking visual properties to scroll position and velocity, featuring built-in inertia to smooth out transitions and prevent abrupt visual jumps. It utilizes a driver-based system to generate numeric streams from inputs like mouse movement or time, which are then transformed into CSS outputs through easing equations and
GreenSock-JS is a JavaScript animation library and framework designed for animating CSS properties, SVG attributes, and JavaScript values. It functions as a scroll-driven animation engine and a sequencing system for coordinating multiple animations into a single timeline for precise execution across web browsers. The project provides tools for creating interactive scroll effects by linking animation progress to a user's scroll position. It also includes a responsive animation framework that adjusts behaviors and timing based on media queries to maintain consistency across different device scr
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
This project is a suite of visual components and interface models designed to create animated transitions between condensed grid previews and expanded detail views. It provides a card transition library and SwiftUI animated UI components that enable a peek-and-pop interface where small preview cards expand into full-screen content. The system implements an animated grid layout that allows collections of cards to expand and contract to reveal more information. These interactions are supported by animations that transform small content cells into full-screen interfaces to maintain visual contin
A simple keyframe-based animation framework for iOS, written in Swift. Perfect for scrolling app intros.
ScrollReveal is a client-side JavaScript library used to trigger CSS animations and transitions for page elements as they enter the browser viewport. It functions as a DOM element animation trigger and a simplified wrapper for the Intersection Observer API to coordinate visual entrance effects and staggered animations based on the user's scroll position. The library focuses on scroll-driven motion and reveal effects, enabling the execution of visual changes and animations automatically as a user navigates a website. It manages the reveal of page content to create movement and progression with
Scrollama is a JavaScript library for scroll-driven storytelling that uses the browser's native IntersectionObserver API to trigger step-based callbacks and animations as the user scrolls through a page. It pins graphic elements using CSS sticky positioning while scrolling through associated text steps, enabling side-by-side narrative experiences without JavaScript-driven layout calculations. The library provides a configurable offset threshold system that accepts a single global offset or per-element data-attribute offsets to define the viewport position that triggers step events. It reports
tween.js is a JavaScript animation engine and numeric interpolation library. It is designed to calculate intermediate values between a start and end state over time, using easing functions to create smooth transitions for numeric values and object properties. The project functions as both an animation sequence manager and an easing library, allowing for the coordination of concurrent animation groups and the chaining of multiple transitions. It provides tools for managing the rate of change through acceleration and deceleration functions. The library covers a broad range of motion capabiliti
Sal is a lightweight vanilla JavaScript library designed to trigger CSS animations and execute custom logic as elements enter the browser viewport. It serves as a programmatic wrapper for the Intersection Observer API, providing a viewport trigger system to handle visibility thresholds and scroll-based animations. The library operates as a dependency-free frontend tool that manages animations through a class-based trigger mechanism and the injection of CSS custom properties. It includes a system for tracking dynamic content, allowing the observer to be updated to include new elements injected
WOW is a JavaScript library and frontend animation controller that triggers CSS animations when elements enter the browser viewport during scrolling. It functions as a viewport trigger engine, managing the timing and execution of visual transitions for both static and dynamic page content. The library integrates scroll events with CSS animations and effects from libraries such as Animate.css. It utilizes intersection observers to monitor viewport entry and mutation observers to track and apply animation triggers to new elements added to the DOM after the initial setup.
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 multi-platform UI framework designed for building applications that target mobile, web, and desktop environments from a single codebase. It utilizes a declarative paradigm where the user interface is defined as a function of application state, supported by a layered architecture that includes a high-performance rendering engine and a multi-platform compilation model. The framework provides a comprehensive suite of developer tools, including hot reloading for real-time code injection and diagnostic utilities for monitoring application state and performance. It features a modu
GSAP is a comprehensive JavaScript animation library designed for orchestrating complex motion sequences and interactive user interfaces. It provides a robust property-interpolation engine that calculates intermediate values for CSS styles, attributes, and numeric properties, enabling smooth visual transitions across web elements. The framework is built on a core architecture that manages animation lifecycles, timeline-based sequence orchestration, and virtual property interception to ensure precise control over motion. The library distinguishes itself through a modular, plugin-based extensib
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
react-native-reusables is a cross-platform mobile UI library and an accessible component kit used to build consistent interfaces across different screen sizes. It functions as a Tailwind CSS component library, providing pre-styled interface elements that utilize utility classes for styling and layout. The project enables cross-platform UI development for iOS and Android through a shared set of reusable visual components. It supports mobile interface prototyping and the creation of cohesive design systems by utilizing standardized, themeable interface elements to maintain uniform branding. Th
Druid is a native user interface toolkit and 2D graphics engine for the Rust programming language. It functions as a retained-mode, data-driven framework for building graphical user interfaces that run across Linux, macOS, and web browsers via WebAssembly. The toolkit distinguishes itself through a data-first approach to UI design, utilizing lenses to isolate subsets of global application state and synchronize them with specific widgets. This allows the visual layout to update automatically when the underlying data model changes. Its capability surface includes a constraint-based box layout
MaterialViewPager is a library that creates a scrollable, swipeable interface with an animated header image, toolbar, and logo following Material Design guidelines. It provides a complete implementation of a Material Design ViewPager, where the header background color and image animate as the user swipes between pages. The library coordinates scroll-driven header animations by synchronising scroll offsets from the ViewPager and attached scrollable views through a central coordinator. It supports fragment-based page composition, allowing each page to have independent content layouts while shar
Animated is a declarative framework designed for creating high-performance, cross-platform interface movements. It provides a system for defining complex UI transitions through property interpolation, value mapping, and physics-based motion, allowing developers to orchestrate fluid visual effects without manual frame updates. The library distinguishes itself by offloading animation instructions to the native UI thread, ensuring consistent performance across mobile and web environments. It supports sophisticated motion design by linking multiple animation variables together, enabling coordinat
ScrollMagic is a DOM scroll interaction framework and animation engine used to map scroll progress to callbacks and visual effects. It functions as a library for triggering animations based on a user's scroll position and the proximity of elements to the viewport. The framework employs a plugin-based system to extend core behavior and customize how elements react during movement. This allows for the development of non-standard scrolling interactions and interactive storytelling experiences where content transitions are tied to the scroll position. The system provides capabilities for viewpor
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
Scroll-timeline is a JavaScript library and standards-based browser polyfill that implements scroll-driven animations and scroll timelines for environments lacking native platform support. It links web animations and CSS animations directly to the user's scroll position or element visibility instead of time, enabling fluid visual effects tied to page movement. The library supports scroll-driven page effects such as scaling image dimensions, panning background positions across large visual elements, and revealing transitions between visual states progressively as the user scrolls. It also trig
This project is a CSS layout framework that functions as a responsive UI geometry solver. It replaces traditional static box model calculations with a constraint-based engine that determines element positions and dimensions by evaluating relational rules. The engine distinguishes itself by using a system of linear equations to resolve geometric conflicts, ensuring that all spatial constraints are satisfied simultaneously. It utilizes a shorthand visual syntax to define these relationships, allowing developers to describe complex alignment and spacing requirements through a declarative languag
This project is a comprehensive CSS animation tutorial and a structured frontend animation course. It serves as a web motion learning resource designed to teach the implementation of visual transitions and animations within a browser. The resource provides a guide to CSS 3D animation, covering the rendering of three-dimensional scenes and depth. It includes instructions on motion design, ranging from scroll-triggered animations and sprite sheet animation to the creation of complex web interface animations. The material covers core capabilities such as manipulating element geometry, controlli
Grommet is a React UI framework and accessible component library designed for building themed user interfaces. It provides a responsive design system and a themed interface toolkit to ensure inclusive user experiences across various screen sizes and device orientations. The framework emphasizes accessible UI development by providing pre-styled elements that follow web accessibility standards for screen readers and keyboard navigation. It enables the implementation of custom themes through a centralized system that manages visual styles and design tokens. The toolkit covers responsive web des
BasicScroll is a standalone scroll-driven animation library that updates CSS custom properties, element styles, and CSS properties dynamically based on absolute or relative viewport scroll positions. It functions as an animation engine designed to build custom parallax scrolling experiences and fluid visual effects on both mobile and desktop viewports. The library supports custom scroll range definitions anchored directly to specific document elements, alongside callback executions that trigger user-defined functions with live progress data and state percentages as the viewport enters or leav
Canvas is a set of graphical tools and development environment extensions for configuring animation properties and interface effects without writing manual code. It provides a visual animation editor and motion tool integrated into Xcode for designing SwiftUI views and layout elements. The project enables the creation of motion effects and transitions through a visual interface, allowing for the design of parallax headers and sticky sections. It includes a visual animation system for managing timing, delays, and animation styles. The toolset covers visual motion prototyping and the implement
react-rnd is a JavaScript UI interaction library and React component used to create elements that are both draggable and resizable within a browser window. It functions as a constraint-based layout component that wraps DOM elements to enforce boundaries, grid snapping, and aspect ratio locks during manual adjustments. The library allows for the definition of custom interaction handles to act as the primary triggers for dragging and resizing actions. It supports axis restrictions, boundary limits, and the ability to round position and dimension values to specified pixel increments. The system
Mobile-first-animation is a mobile web animation library and touch gesture animation toolkit designed to create fluid, gesture-driven animations and spring physics interactions. It provides a spring physics simulation engine that calculates realistic motion dynamics, responding naturally to user velocity and release points. The library features a gesture-driven animation pipeline that binds raw touch input directly to animation drivers, alongside a declarative animation interpolation system that maps continuous touch coordinate ranges to visual style properties. It applies hardware-accelerate
Motionity is a browser-based motion graphics editor and video compositor. It provides a visual timeline for creating animated videos and compositions using a layer-based system and keyframe animation tools. The project features a dedicated Lottie animation renderer, allowing users to import and render vector-based files for scalable motion graphics. It includes specialized tools for keyframe animation, using easing functions to control object movement and property transitions. The platform covers a broad range of production capabilities, including digital asset composition, video clip editin