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Licensing

Learn about our licensing options to find which best fits your needs.

Licensing Options

GreenSock’s standard "No Charge" license is very permissive (it even covers most commercial uses), but "Business Green" members get a comprehensive commercial license plus time-saving bonus plugins and tools. Why isn't GreenSock MIT-licensed? Find out here.

Benefits

Most developers find that GSAP’s workflow features alone save them so much time that the license pays for itself literally in a matter of days. After factoring in the bonus plugins and the performance boost, the expense quickly turns into profit.

Business License

Our paid license is only necessary in projects that you sell to multiple end users. That's it. Even if you charge your client a million dollars for whatever you create for them, it's fine to use GreenSock tools under the standard license as long as it's a one-off project.

Enterprise Level

We realize that some legal departments can be quite picky and enterprise institutions have a unique set of needs, so if our standard "BusinessGreen" license isn't quite what you need, check out our Enterprise Licensing page.

What's Covered?

License Standard Business

Usage in 100% free apps, games, sites, and other software even if you charge a fee to develop these products

This includes advertising, internal sites and tools, promotional web sites, free software, and pretty much everything that isn't sold to multiple end users.

Distribution of GreenSock files as a part of your Work Product

Even in open source projects, as long as you leave the source files unedited and recognize that the GreenSock files are subject to their own license. Only BusinessGreen members can distribute the members-only bonus plugins (like ThrowPropsPlugin), and solely to be used as a part of their Work Product.
Usage in web sites or products that require a fee to use or join (NetFlix.com, Ancestry.com, eHarmony.com, etc.)
Usage in games or products that are sold to multiple end users

Usage in games or other apps that use micro-transactions for optional features/upgrades

An example of a micro-transaction is when a user can optionally pay to unlock a certain feature in a free game/app, or a gambling site where the user can technically visit for free, but they may choose to pay to place bets or play games.

Usage of members-only tools like ThrowPropsPlugin, Physics2DPlugin, etc.

One of the nice things about becoming a member is that you gain access to some useful tools that create eye-catching effects, smooth your workflow, and generally save a lot of time and hassle. See the Club GreenSock page for details.

Business-Friendly

GreenSock's dual licensing model keeps it extremely accessible and completely free for the vast majority of use cases while at the same time providing a small funding mechanism that sustains ongoing support, innovation, and sustainability. The web is littered with abandoned "open source" projects, but GreenSock has a years-long track record of commitment to the platform. Some of the largest companies in the world trust GreenSock tools in their business-critical applications every day. Learn about the "why" behind the GreenSock license here.

Get Covered
Go BusinessGreen


For individuals and businesses who want everything including a special commercial license.

Sign up now

FAQS

Why aren't the bonus plugins hosted on a CDN?

Putting them on a CDN would remove one of the primary reasons for joining Club GreenSock, the very thing that enables ongoing support and development. Not a very good business move.

I don’t want to pay annually. Can I get a permanent license that never expires?

Absolutely. Click the "permanent" checkbox under the "Business Green" membership on the Club GreenSock page.

What if I develop a commercial product for my client who will be the one selling the product? Who needs the “Business Green” membership?

To make it easier on GreenSock customers, the policy is that the development company needs to maintain a valid “Business Green” membership. If, for example, Company A develops a Work Product that uses TweenLite/Max and sells it to Company B who will be licensing it to end users, Company A must maintain a “Business Green” membership. Company B would not be required to have a membership. If, however, Company B prefers to maintain a membership instead, that is perfectly acceptable as long as it wouldn’t reduce the club level, meaning if the development company has 20 developers and Company B has 1 developer, it wouldn’t be fair to circumvent the terms by only having Company B get a single developer membership. A 20-developer membership would be required.

Does Draggable use CSS3 animations or transitions for the motion?

Nope. CSS3 transitions and animations have some significant limitations that make them ill-suited for the type of motion that these tools require, so highly optimized JavaScript is used instead. In order to tap into GPU compositing, 3D transforms are used when possible (in browsers that support them) and updates are made using requestAnimationFrame (when available) for maximum efficiency. See for yourself in Chrome Dev Tools - you should see very snappy performance in the timeline. Many other tools like jQuery UI use top/left properties for positioning which don't generally perform as well. These tools have been fully "GreenSocked" so performance is smoking fast, just like the core tweening engine.

Does the JavaScript version of GSAP use CSS3 transitions to deliver even better performance (with help from the GPU)?

CSS3 transitions have some significant limitations that make them unworkable for a serious animation platform. They don’t provide precise controls over the timing or easing. They’re great for simple effects but the GreenSock Animation Platform delivers extremely precise rendering, so you can do things like pause() and reverse() an animation anytime or skip to a specific time and play from there, etc. Try creating a CSS3 transition that uses an elastic.out or slow motion ease and then jump to 0.72494-seconds into a 2-second transition and pause() only to resume() later. It’s impossible from what I understand. So no, the platform doesn’t make use of CSS3 transitions. However, it is highly optimized for performance. See the detailed cage match where GSAP battles CSS3 transitions where there’s a detailed comparison in several categories.

Will the bonus plugins suddenly stop working when my membership expires?

Nope. We don't inject any "phone home" code that tracks usage or causes the plugins to suddenly stop working on a certain date. Hopefully our tools prove so valuable and profitable to you that you'll gladly renew every year to keep getting access to the goodies.

Which browsers work with the JavaScript version of GSAP?

GSAP itself is pure JavaScript and should work in virtually ALL browsers. GSAP wasn’t intended to solve all browser incompatibilities, but it does implement wizardry for critical features like opacity, transforms (rotation, scaleX, scaleY, skewX, skewY, x, and y), and transformOrigin so those should work in all major browsers even back to IE6. Firefox doesn’t support backgroundPositionX or backgroundPositionY, so those specific properties won’t work but backgroundPosition will for virtually all browsers. There is NOT a predetermined list of css properties that you can tween – the platform will attempt to tween ANY property you pass in. If it is numeric, it will tween it. If it isn’t numeric and it isn’t a recognized special property, CSSPlugin will just set the property to the value you provide (without tweening it). So, for example, if you try to tween to display:"inline", that isn’t a tweenable property but it will still be set accordingly during the tween, so feel free to use that to your advantage.

Can I distribute GreenSock files as a part of my Work Product?

Yes, as long as the source files are unaltered (including copyright notices therein). Your customer may use GreenSock tools (including bonus plugins/classes you got with your membership) only as a part of your Work Product. However, if your customer wants to use the GreenSock tools outside of your Work Product (or make customizations to your Work Product) to resell to their customers, they would need to get their own "Business Green" Club GreenSock membership to cover their usage. If your Work Product is given away freely and you're not distributing members-only plugins, you're golden...er, green...er, fine.
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