software licensing
Two wow js on github
<p>I see two wowjs distributors on the GitHub. The first is <a href="https://github.com/graingert/wow" rel="nofollow noreferrer">https://github.com/graingert/wow</a> and the second is <a href="https://github.com/matthieua/WOW" rel="nofollow noreferrer">https://github.com/matthieua/WOW</a>.</p>
<p>The first is under a license like <a href="https://github.com/graingert/WOW/blob/master/LICENSE" rel="nofollow noreferrer">this one</a> and <a href="https://wowjs.uk/" rel="nofollow noreferrer">free of charge</a>. The second one have no license (seems proprietary) as far as I understand and <a href="https://www.delac.io/wow/" rel="nofollow noreferrer">not free of charge</a>. I don't know how these two different ones are possible (it would be great to learn something about it).</p>
<p>Anyway, can I add / use free one to / in my commercial project? (I am a web template seller)</p>
<p>Thank you.</p>

<p>It appears that these two Github projects are two forks of the same project. One is licensed under the MIT license while the other is dual-licensed under the GNU GPL and a proprietary license.</p>
<p>The MIT is a so-called &quot;<a href="https://en.wikipedia.org/wiki/Copyleft#Strong_and_weak_copyleft" rel="nofollow noreferrer">weak copyleft</a>&quot; license. That means it is possible to take a work licensed under MIT, make changes, and release those changes under a different license like the GPL (as long as credit is given). The GPL, however, is a &quot;strong copyleft&quot; license. It does not permit to take a GPL work and re-release it under other license conditions.</p>
<blockquote>
<p>can I add / use this free one to /in my commercial project? (I am a web template seller)</p>
</blockquote>
<p>That depends on a lot of details which would fall into the &quot;individualized legal advise&quot; category which this website does not and can not provide. Like whether you just use the software or create derivative works or whether you bundle it with other software it communicates with &quot;at arms length&quot; or combine it with other works to a single unit. A lot of questions regarding what you can and can not do with GPL-licensed software is explained in <a href="https://www.gnu.org/licenses/gpl-faq.html" rel="nofollow noreferrer">the GPL FAQ</a>.</p>
