Greensock

GreenSock's GSAP JavaScript animation library (including Draggable).

README

GSAP (GreenSock Animation Platform)

Professional-grade animation for the modern web

GSAP is a robust JavaScript toolset that turns developers into animation superheroes. Build high-performance animations that work in **every** major browser. Animate CSS, SVG, canvas, React, Vue, WebGL, colors, strings, motion paths, generic objects...anything JavaScript can touch! GSAP's ScrollTrigger plugin lets you create jaw-dropping scroll-based animations with minimal code. gsap.matchMedia() makes building responsive, accessibility-friendly animations a breeze.

No other library delivers such advanced sequencing, reliability, and tight control while solving real-world problems on over 11 million sites. GSAP works around countless browser inconsistencies; your animations just work. At its core, GSAP is a high-speed property manipulator, updating values over time with extreme accuracy. It's up to 20x faster than jQuery! See https://greensock.com/why-gsap/ for what makes GSAP so special.

What is GSAP? (video)

GSAP is completely flexible; sprinkle it wherever you want. Zero dependencies.

There are many optional plugins and easing functions for achieving advanced effects easily like scrolling, morphing, animating along a motion path or FLIP animations. There's even a handy Observer for normalizing event detection across browsers/devices.

Docs & Installation

View the full documentation here, including an installation guide with videos.

CDN

``` html
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.11.3/gsap.min.js"></script>
```

Click the green "Get GSAP Now" button at greensock.com for more options and installation instructions, including CDN URLs for various plugins.

Every major ad network excludes GSAP from file size calculations and most have it on their own CDNs, so contact them for the appropriate URL(s).

NPM

See the guide to using GSAP via NPM here.

``` js
npm install gsap
```

The default (main) file is **gsap.js** which includes most of the eases as well as the core plugins like CSSPlugin, AttrPlugin, SnapPlugin, ModifiersPlugin, and all of the utility methods like interpolate(), mapRange(), etc.

``` js
// typical import
import gsap from "gsap";
// get other plugins:
import ScrollTrigger from "gsap/ScrollTrigger";
import Flip from "gsap/Flip";
import Draggable from "gsap/Draggable";
// or all tools are exported from the "all" file (excluding members-only plugins):
import { gsap, ScrollTrigger, Draggable, MotionPathPlugin } from "gsap/all";
// don't forget to register plugins
gsap.registerPlugin(ScrollTrigger, Draggable, Flip, MotionPathPlugin);
```

The NPM files are ES modules, but there's also a /dist/ directory with UMD files for extra compatibility.

Download Club GreenSock members-only plugins from your GreenSock.com account and then include them in your own JS payload. There's even a tarball file you can install with NPM/Yarn. GreenSock has a private NPM registry for members too. Post questions in our forums and we'd be happy to help.

Getting Started (includes video)

ScrollTrigger & ScrollSmoother

If you're looking to do scroll-driven animations, GSAP's ScrollTrigger plugin is the new standard. There's a companion ScrollSmoother as well.

Resources

* GSAP home page* Getting started guide* Docs* Cheat sheet* Forums* Ease Visualizer* Showcase* Why GSAP? (convince your boss)* Staggering animations in GSAP 3* Draggable* Club GreenSock (get access to bonus plugins not in this repository)

What is Club GreenSock? (video)

There are 3 main reasons anyone signs up for Club GreenSock: * To get access to the incredibly helpful members-only plugins like MorphSVGPlugin, SplitText, ScrollSmoother, etc.* To get the special commercial license ("Business Green" - only necessary if multiple customers are being charged for something that uses GreenSock technology).

To support ongoing development efforts and cheer us on.

Advanced playback controls & debugging

GSDevTools adds a visual UI for controlling your GSAP animations which can significantly boost your workflow and productivity. (Club GreenSock membership required, not included in this repository).

Try all bonus plugins for free!

https://greensock.com/try-plugins

Need help?

GreenSock forums are an excellent resource for learning and getting your questions answered. Report any bugs there too please (it's also okay to file an issue on Github if you prefer).

License

GreenSock's standard "no charge" license can be viewed at http://greensock.com/standard-license. Club GreenSock members are granted additional rights. See http://greensock.com/licensing/ for details. Why doesn't GreenSock use an MIT (or similar) open source license, and why is that a **good** thing? This article explains it all: http://greensock.com/why-license/