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Is GPL v3 free for commercial use?
The GPL v3 license permits users of the code to: Use the code for commercial purposes: Like GPL v2, GPL v3 imposes no conditions on the internal use of the software.
Can I modify MIT license code?
The MIT license gives users express permission to reuse code for any purpose, sometimes even if code is part of proprietary software. As long as users include the original copy of the MIT license in their distribution, they can make any changes or modifications to the code to suit their own needs.
Should I use the GPL or a more permissive license?
Using the GNU GPL will require that all the released improved versions be free software. This means you can avoid the risk of having to compete with a proprietary modified version of your own work. However, in some special situations it can be better to use a more permissive license.
Can I distribute a modified version of a project under the GPL?
No. The GPL says that your modified versions must carry all the freedoms stated in the GPL. Thus, anyone who receives a copy of your version from you has the right to redistribute copies (modified or not) of that version. You may not distribute any version of the work on a more restrictive basis.
What does “GPL” stand for?
“GPL” stands for “General Public License”. The most widespread such license is the GNU General Public License, or GNU GPL for short. This can be further shortened to “GPL”, when it is understood that the GNU GPL is the one intended.
Can You incorporate GPL-covered software into a proprietary system?
You cannot incorporate GPL-covered software in a proprietary system. The goal of the GPL is to grant everyone the freedom to copy, redistribute, understand, and modify a program. If you could incorporate GPL-covered software into a nonfree system, it would have the effect of making the GPL-covered software nonfree too.