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GSAP (GreenSock Animation Platform)

GSAP - Animate anything

GSAP is a framework-agnostic JavaScript animation library 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 delivers 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 12 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!

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, text splitting, animating along a motion path or FLIP animations. There's even a handy Observer for normalizing event detection across browsers/devices.

Get Started

Get Started with GSAP

Docs & Installation

View the full documentation here, including an installation guide.

CDN

<scriptsrc="https://cdn.jsdelivr.net/npm/gsap@3.13/dist/gsap.min.js"></script>

See JSDelivr's dedicated GSAP page for quick CDN links to the core files/plugins. There are more installation instructions at gsap.com.

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.

npminstallgsap

GSAP's core can animate almost anything including CSS and attributes, plus it includes all of the utility methods like interpolate(), mapRange(), most of the eases, and it can do snapping and modifiers.

// typical importimportgsapfrom"gsap";// get other plugins:importScrollTriggerfrom"gsap/ScrollTrigger";importFlipfrom"gsap/Flip";importDraggablefrom"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 pluginsgsap.registerPlugin(ScrollTrigger,Draggable,Flip,MotionPathPlugin);

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

GSAP is FREE!

Thanks to Webflow, GSAP is now 100% FREE including ALL of the bonus plugins like SplitText, MorphSVG, and all the others that were exclusively available to Club GSAP members. That's right - the entire GSAP toolset is FREE, even for commercial use! 🤯 Read more here

ScrollTrigger & ScrollSmoother

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

ScrollTrigger

Using React?

There's a @gsap/react package that exposes a useGSAP() hook which is a drop-in replacement for useEffect()/useLayoutEffect(), automating cleanup tasks. Please read the React guide for details.

Resources

Need help?

Ask in the friendly GSAP forums. Or share your knowledge and help someone else - it's a great way to sharpen your skills! Report any bugs there too (or file an issue here if you prefer).

License

GreenSock's standard "no charge" license can be viewed at https://gsap.com/standard-license.

Copyright (c) 2008-2025, GreenSock. All rights reserved.

About

GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web

gsap.com

Resources

Readme

Security policy

Security policy
Activity

Stars

0 stars

Watchers

0 watching

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0 forks
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GitHub - cernak/GSAP: GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web · GitHub
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Repository files navigation
GSAP (GreenSock Animation Platform)
GSAP - Animate anything
GSAP is a framework-agnostic JavaScript animation library 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 delivers 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 12 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!
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, text splitting, animating along a motion path or FLIP animations. There's even a handy Observer for normalizing event detection across browsers/devices.
Get Started
Get Started with GSAP
Docs & Installation
View the full documentation here, including an installation guide.
CDN
<scriptsrc="https://cdn.jsdelivr.net/npm/gsap@3.13/dist/gsap.min.js"></script>
See JSDelivr's dedicated GSAP page for quick CDN links to the core files/plugins. There are more installation instructions at gsap.com.
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.
npminstallgsap
GSAP's core can animate almost anything including CSS and attributes, plus it includes all of the utility methods like interpolate(), mapRange(), most of the eases, and it can do snapping and modifiers.
// typical importimportgsapfrom"gsap";// get other plugins:importScrollTriggerfrom"gsap/ScrollTrigger";importFlipfrom"gsap/Flip";importDraggablefrom"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 pluginsgsap.registerPlugin(ScrollTrigger,Draggable,Flip,MotionPathPlugin);
The NPM files are ES modules, but there's also a /dist/ directory with UMD files for extra compatibility.
GSAP is FREE!
Thanks to Webflow, GSAP is now 100% FREE including ALL of the bonus plugins like SplitText, MorphSVG, and all the others that were exclusively available to Club GSAP members. That's right - the entire GSAP toolset is FREE, even for commercial use! 🤯 Read more here
ScrollTrigger & ScrollSmoother
If you're looking for scroll-driven animations, GSAP's ScrollTrigger plugin is the standard. There's a companion ScrollSmoother as well.
ScrollTrigger
Using React?
There's a @gsap/react package that exposes a useGSAP() hook which is a drop-in replacement for useEffect()/useLayoutEffect(), automating cleanup tasks. Please read the React guide for details.
Resources
Need help?
Ask in the friendly GSAP forums. Or share your knowledge and help someone else - it's a great way to sharpen your skills! Report any bugs there too (or file an issue here if you prefer).
License
GreenSock's standard "no charge" license can be viewed at https://gsap.com/standard-license.
Copyright (c) 2008-2025, GreenSock. All rights reserved.
About
GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web
gsap.com
Resources
Readme
Security policy
Security policy
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - cernak/GSAP: GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web · GitHub
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SECURITY.md
SECURITY.md
package.json
package.json
Repository files navigation
GSAP (GreenSock Animation Platform)
GSAP - Animate anything
GSAP is a framework-agnostic JavaScript animation library 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 delivers 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 12 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!
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, text splitting, animating along a motion path or FLIP animations. There's even a handy Observer for normalizing event detection across browsers/devices.
Get Started
Get Started with GSAP
Docs & Installation
View the full documentation here, including an installation guide.
CDN
<scriptsrc="https://cdn.jsdelivr.net/npm/gsap@3.13/dist/gsap.min.js"></script>
See JSDelivr's dedicated GSAP page for quick CDN links to the core files/plugins. There are more installation instructions at gsap.com.
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.
npminstallgsap
GSAP's core can animate almost anything including CSS and attributes, plus it includes all of the utility methods like interpolate(), mapRange(), most of the eases, and it can do snapping and modifiers.
// typical importimportgsapfrom"gsap";// get other plugins:importScrollTriggerfrom"gsap/ScrollTrigger";importFlipfrom"gsap/Flip";importDraggablefrom"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 pluginsgsap.registerPlugin(ScrollTrigger,Draggable,Flip,MotionPathPlugin);
The NPM files are ES modules, but there's also a /dist/ directory with UMD files for extra compatibility.
GSAP is FREE!
Thanks to Webflow, GSAP is now 100% FREE including ALL of the bonus plugins like SplitText, MorphSVG, and all the others that were exclusively available to Club GSAP members. That's right - the entire GSAP toolset is FREE, even for commercial use! 🤯 Read more here
ScrollTrigger & ScrollSmoother
If you're looking for scroll-driven animations, GSAP's ScrollTrigger plugin is the standard. There's a companion ScrollSmoother as well.
ScrollTrigger
Using React?
There's a @gsap/react package that exposes a useGSAP() hook which is a drop-in replacement for useEffect()/useLayoutEffect(), automating cleanup tasks. Please read the React guide for details.
Resources
Need help?
Ask in the friendly GSAP forums. Or share your knowledge and help someone else - it's a great way to sharpen your skills! Report any bugs there too (or file an issue here if you prefer).
License
GreenSock's standard "no charge" license can be viewed at https://gsap.com/standard-license.
Copyright (c) 2008-2025, GreenSock. All rights reserved.
About
GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web
gsap.com
Resources
Readme
Security policy
Security policy
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - cernak/GSAP: GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web · GitHub
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SECURITY.md
SECURITY.md
package.json
package.json
Repository files navigation
GSAP (GreenSock Animation Platform)
GSAP - Animate anything
GSAP is a framework-agnostic JavaScript animation library 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 delivers 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 12 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!
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, text splitting, animating along a motion path or FLIP animations. There's even a handy Observer for normalizing event detection across browsers/devices.
Get Started
Get Started with GSAP
Docs & Installation
View the full documentation here, including an installation guide.
CDN
<scriptsrc="https://cdn.jsdelivr.net/npm/gsap@3.13/dist/gsap.min.js"></script>
See JSDelivr's dedicated GSAP page for quick CDN links to the core files/plugins. There are more installation instructions at gsap.com.
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.
npminstallgsap
GSAP's core can animate almost anything including CSS and attributes, plus it includes all of the utility methods like interpolate(), mapRange(), most of the eases, and it can do snapping and modifiers.
// typical importimportgsapfrom"gsap";// get other plugins:importScrollTriggerfrom"gsap/ScrollTrigger";importFlipfrom"gsap/Flip";importDraggablefrom"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 pluginsgsap.registerPlugin(ScrollTrigger,Draggable,Flip,MotionPathPlugin);
The NPM files are ES modules, but there's also a /dist/ directory with UMD files for extra compatibility.
GSAP is FREE!
Thanks to Webflow, GSAP is now 100% FREE including ALL of the bonus plugins like SplitText, MorphSVG, and all the others that were exclusively available to Club GSAP members. That's right - the entire GSAP toolset is FREE, even for commercial use! 🤯 Read more here
ScrollTrigger & ScrollSmoother
If you're looking for scroll-driven animations, GSAP's ScrollTrigger plugin is the standard. There's a companion ScrollSmoother as well.
ScrollTrigger
Using React?
There's a @gsap/react package that exposes a useGSAP() hook which is a drop-in replacement for useEffect()/useLayoutEffect(), automating cleanup tasks. Please read the React guide for details.
Resources
Need help?
Ask in the friendly GSAP forums. Or share your knowledge and help someone else - it's a great way to sharpen your skills! Report any bugs there too (or file an issue here if you prefer).
License
GreenSock's standard "no charge" license can be viewed at https://gsap.com/standard-license.
Copyright (c) 2008-2025, GreenSock. All rights reserved.
About
GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web
gsap.com
Resources
Readme
Security policy
Security policy
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
GitHub - cernak/GSAP: GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web · GitHub
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184 Commits
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README.md
README.md
SECURITY.md
SECURITY.md
package.json
package.json
Repository files navigation
GSAP (GreenSock Animation Platform)
GSAP - Animate anything
GSAP is a framework-agnostic JavaScript animation library 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 delivers 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 12 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!
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, text splitting, animating along a motion path or FLIP animations. There's even a handy Observer for normalizing event detection across browsers/devices.
Get Started
Get Started with GSAP
Docs & Installation
View the full documentation here, including an installation guide.
CDN
<scriptsrc="https://cdn.jsdelivr.net/npm/gsap@3.13/dist/gsap.min.js"></script>
See JSDelivr's dedicated GSAP page for quick CDN links to the core files/plugins. There are more installation instructions at gsap.com.
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.
npminstallgsap
GSAP's core can animate almost anything including CSS and attributes, plus it includes all of the utility methods like interpolate(), mapRange(), most of the eases, and it can do snapping and modifiers.
// typical importimportgsapfrom"gsap";// get other plugins:importScrollTriggerfrom"gsap/ScrollTrigger";importFlipfrom"gsap/Flip";importDraggablefrom"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 pluginsgsap.registerPlugin(ScrollTrigger,Draggable,Flip,MotionPathPlugin);
The NPM files are ES modules, but there's also a /dist/ directory with UMD files for extra compatibility.
GSAP is FREE!
Thanks to Webflow, GSAP is now 100% FREE including ALL of the bonus plugins like SplitText, MorphSVG, and all the others that were exclusively available to Club GSAP members. That's right - the entire GSAP toolset is FREE, even for commercial use! 🤯 Read more here
ScrollTrigger & ScrollSmoother
If you're looking for scroll-driven animations, GSAP's ScrollTrigger plugin is the standard. There's a companion ScrollSmoother as well.
ScrollTrigger
Using React?
There's a @gsap/react package that exposes a useGSAP() hook which is a drop-in replacement for useEffect()/useLayoutEffect(), automating cleanup tasks. Please read the React guide for details.
Resources
Need help?
Ask in the friendly GSAP forums. Or share your knowledge and help someone else - it's a great way to sharpen your skills! Report any bugs there too (or file an issue here if you prefer).
License
GreenSock's standard "no charge" license can be viewed at https://gsap.com/standard-license.
Copyright (c) 2008-2025, GreenSock. All rights reserved.
About
GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web
gsap.com
Resources
Readme
Security policy
Security policy
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - cernak/GSAP: GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web · GitHub
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GSAP (GreenSock Animation Platform)
GSAP - Animate anything
GSAP is a framework-agnostic JavaScript animation library 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 delivers 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 12 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!
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, text splitting, animating along a motion path or FLIP animations. There's even a handy Observer for normalizing event detection across browsers/devices.
Get Started
Get Started with GSAP
Docs & Installation
View the full documentation here, including an installation guide.
CDN
<scriptsrc="https://cdn.jsdelivr.net/npm/gsap@3.13/dist/gsap.min.js"></script>
See JSDelivr's dedicated GSAP page for quick CDN links to the core files/plugins. There are more installation instructions at gsap.com.
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.
npminstallgsap
GSAP's core can animate almost anything including CSS and attributes, plus it includes all of the utility methods like interpolate(), mapRange(), most of the eases, and it can do snapping and modifiers.
// typical importimportgsapfrom"gsap";// get other plugins:importScrollTriggerfrom"gsap/ScrollTrigger";importFlipfrom"gsap/Flip";importDraggablefrom"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 pluginsgsap.registerPlugin(ScrollTrigger,Draggable,Flip,MotionPathPlugin);
The NPM files are ES modules, but there's also a /dist/ directory with UMD files for extra compatibility.
GSAP is FREE!
Thanks to Webflow, GSAP is now 100% FREE including ALL of the bonus plugins like SplitText, MorphSVG, and all the others that were exclusively available to Club GSAP members. That's right - the entire GSAP toolset is FREE, even for commercial use! 🤯 Read more here
ScrollTrigger & ScrollSmoother
If you're looking for scroll-driven animations, GSAP's ScrollTrigger plugin is the standard. There's a companion ScrollSmoother as well.
ScrollTrigger
Using React?
There's a @gsap/react package that exposes a useGSAP() hook which is a drop-in replacement for useEffect()/useLayoutEffect(), automating cleanup tasks. Please read the React guide for details.
Resources
Need help?
Ask in the friendly GSAP forums. Or share your knowledge and help someone else - it's a great way to sharpen your skills! Report any bugs there too (or file an issue here if you prefer).
License
GreenSock's standard "no charge" license can be viewed at https://gsap.com/standard-license.
Copyright (c) 2008-2025, GreenSock. All rights reserved.
About
GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web
gsap.com
Resources
Readme
Security policy
Security policy
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
})();
GitHub - cernak/GSAP: GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web · GitHub
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GSAP (GreenSock Animation Platform)
GSAP - Animate anything
GSAP is a framework-agnostic JavaScript animation library 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 delivers 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 12 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!
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, text splitting, animating along a motion path or FLIP animations. There's even a handy Observer for normalizing event detection across browsers/devices.
Get Started
Get Started with GSAP
Docs & Installation
View the full documentation here, including an installation guide.
CDN
<scriptsrc="https://cdn.jsdelivr.net/npm/gsap@3.13/dist/gsap.min.js"></script>
See JSDelivr's dedicated GSAP page for quick CDN links to the core files/plugins. There are more installation instructions at gsap.com.
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.
npminstallgsap
GSAP's core can animate almost anything including CSS and attributes, plus it includes all of the utility methods like interpolate(), mapRange(), most of the eases, and it can do snapping and modifiers.
// typical importimportgsapfrom"gsap";// get other plugins:importScrollTriggerfrom"gsap/ScrollTrigger";importFlipfrom"gsap/Flip";importDraggablefrom"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 pluginsgsap.registerPlugin(ScrollTrigger,Draggable,Flip,MotionPathPlugin);
The NPM files are ES modules, but there's also a /dist/ directory with UMD files for extra compatibility.
GSAP is FREE!
Thanks to Webflow, GSAP is now 100% FREE including ALL of the bonus plugins like SplitText, MorphSVG, and all the others that were exclusively available to Club GSAP members. That's right - the entire GSAP toolset is FREE, even for commercial use! 🤯 Read more here
ScrollTrigger & ScrollSmoother
If you're looking for scroll-driven animations, GSAP's ScrollTrigger plugin is the standard. There's a companion ScrollSmoother as well.
ScrollTrigger
Using React?
There's a @gsap/react package that exposes a useGSAP() hook which is a drop-in replacement for useEffect()/useLayoutEffect(), automating cleanup tasks. Please read the React guide for details.
Resources
Need help?
Ask in the friendly GSAP forums. Or share your knowledge and help someone else - it's a great way to sharpen your skills! Report any bugs there too (or file an issue here if you prefer).
License
GreenSock's standard "no charge" license can be viewed at https://gsap.com/standard-license.
Copyright (c) 2008-2025, GreenSock. All rights reserved.
About
GSAP (GreenSock Animation Platform), a JavaScript animation library for the modern web
gsap.com
Resources
Readme
Security policy
Security policy
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages