A permissive license that also provides an express grant of patent rights from contributors to users.
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GPL is the most widely used free software license and has a strong copyleft requirement. When distributing derived works, the source code of the work must be made available under the same license. There are multiple variants of the GPL, each with different requirements.
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A permissive license that is short and to the point. It lets people do anything with your code with proper attribution and without warranty.
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Some communities tend to have specific licenses preferred by the community. For example, Perl developers often choose the Artistic License.
Heavily favored by the Perl community, the Artistic license requires that modified versions of the software do not prevent users from running the standard version.
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This commercially-friendly copyleft license provides the ability to commercially license binaries; a modern royalty-free patent license grant; and the ability for linked works to use other licenses, including commercial ones.
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A permissive license lets people do anything with your code with proper attribution and without warranty. The ISC license is functionally equivalent to the BSD 2-Clause and MIT licenses, removing some language that is no longer necessary.
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Primarily used for software libraries, LGPL requires that derived works be licensed under the same license, but works that only link to it do not fall under this restriction. There are two commonly used versions of the LGPL.
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The Mozilla Public License (MPL 2.0) is maintained by the Mozilla foundation. This license attempts to be a compromise between the permissive BSD license and the reciprocal GPL license.
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You retain all rights and do not permit distribution, reproduction, or derivative works. You may grant some rights in cases where you publish your source code to a site that requires accepting terms of service. For example, publishing code in a public repository on GitHub requires that you allow others to view and fork your code.
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Because copyright is automatic in most countries, the Unlicense is a template to waive copyright interest in software you've written and dedicate it to the public domain. Use the Unlicense to opt out of copyright entirely. It also includes the no-warranty statement from the MIT/X11 license.
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