Browse, compare, and understand the most popular open source licenses.
A short and simple permissive license with conditions only requiring preservation of copyright and license notices. Lice...
A permissive license whose main conditions require preservation of copyright and license notices. Contributors provide a...
Permissions of this strong copyleft license are conditioned on making available complete source code of licensed works a...
The GNU GPL is the most widely used free software license and has a strong copyleft requirement. When distributing deriv...
Permissions of this copyleft license are conditioned on making available complete source code of licensed works and modi...
Primarily used for software libraries, the GNU LGPL requires that derived works be licensed under the same license, but ...
A permissive license that comes in two variants, the BSD 2-Clause and BSD 3-Clause. Both have very minimal requirements ...
A permissive license similar to the BSD 2-Clause License, but with a 3rd clause that prohibits others from using the nam...
A permissive license functionally equivalent to the BSD 2-Clause license, but with simplified language. The ISC license ...
Permissions of this weak copyleft license are conditioned on making available source code of licensed files and modifica...
Permissions of this strongest copyleft license are conditioned on making available complete source code of licensed work...
A license with no conditions whatsoever which dedicates works to the public domain. Unlicensed works, modifications, and...
The Creative Commons CC0 Public Domain Dedication waives copyright interest in a work you've created and dedicates it to...
Heavily favored by the Perl community, the Artistic license requires that modified versions of the software do not preve...
A short permissive license, compatible with GPL. Requires altered source versions to be plainly marked as such and not m...
A simple permissive license only requiring preservation of copyright and license notices for source (and not binary) dis...
This commercially-friendly copyleft license provides the ability to commercially license binaries; a modern royalty-free...
The European Union Public License (EUPL) is a copyleft free/open source software license created on the initiative of an...
Permits almost any use subject to providing credit and license notice. Frequently used for media assets and educational ...
Similar to CC-BY-4.0 but requires derivatives be distributed under the same or a compatible license. Commonly used for m...
The easiest license out there. It gives the user permissions to do whatever they want with the code. This license is GPL...
The BSD Zero Clause License goes further than the BSD 2-Clause license to allow you unlimited freedom with the software ...
A very short, BSD-like license, used specifically for PostgreSQL. This is a permissive free software license with minima...