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GreenSock FAQs

FAQS

We've compiled a bunch of the most frequently asked questions along with their answers here. If you don't find the answer here, search the forums, or contact us.

FAQs

Is there a limit to the number of projects I can use GreenSock tools in as a “Business Green” member?

No. The commercial license that comes with “Business Green” Club GreenSock memberships applies to an unlimited number of apps/sites/software/games that your organization sells while the membership is active (see the license agreement for specifics). Please be sure, however, to get the appropriate membership level based on the number of developers associated with your organization.

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.

For how long must I maintain my membership?

You may cancel anytime. You'll simply lose access to updates to the bonus plugins/tools and if you're a Business Green member, your commercial license would expire at that point. You should keep it active as long you are selling/licensing your product to multiple end users. Work Products that you sold in the past do not suddenly fall out of compliance when your membership lapses – you just can't continue to sell products that use GreenSock tools after your membership expires. If you don't want to worry about the license expiring, you can simply get a permanent license. Oh, and we don't add any code into the members-only plugins that would make them suddenly stop working when your membership expires. They'll continue to work.

When determining the appropriate membership level, do I need to include only full-time developers? What if my company doesn’t have any?

You must include all freelancers, consultants, subcontractors, etc. in addition to full-time developers.

How much does It cost?

There are several different “Business Green” membership levels based on the number of developers that will have access to the code. All “Business Green” memberships come with the special commercial license. Please see the Club GreenSock page for pricing details.

How do I get a license?

Just sign up for a “Business Green” Club GreenSock membership at the level that corresponds to the number of developers in your organization. That’s it!

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.

Can I include GreenSock code in my open source library?

Absolutely, but there are a few caveats: You may not include any of the members-only bonus plugins/classes in your open source tool (for obvious reasons) and you must clearly represent that the GreenSock code uses its own separate licensing model. We encourage the use of GreenSock tools to empower other open source tools.

Why not give the code away for free?

We firmly believe this licensing model ultimately delivers a superior end product and serves the community better. Open source projects with no funding mechanism typically stagnate and become obsolete. Our goal with this licensing model is to keep the tools extremely accessible while putting in place a mechanism that funds continued support, innovation, and bug fixes. Read The "Why" Behind the GreenSock License for details.

Do I have to purchase a license to use GSAP? Can I use it in commercial projects?

GreenSock uses a very permissive license that allows you to use the tools for free for everything except a very specific type of commercial use (if you collect a fee from multiple customers for the same app/product/site that uses GreenSock tools) which makes it extremely accessible and business-friendly while providing a small funding mechanism to sustain ongoing support, enhancement, and innovation. The web is littered with abandoned “open source” projects, but GreenSock has a years-long track record of commitment to the platform. This unique licensing model is a key component of that sustainability. If multiple customers are charged a usage/access/license fee of any kind, please simply sign up for a “Business Green” Club GreenSock membership which comes with a special commercial license granting you permission to do so. Click here for details. Joining the club also gets you members-only bonus plugins, classes, update notifications, and more. Please see the licensing page for details.

Can I try the bonus plugins before I buy?

Absolutely! We would love for you to see for yourself how powerful and helpful these tools are. We created a starter template and video to show you how to use fully-functional trial versions of Club GreenSock plugins on CodePen.
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