Open source license
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The GNU General Public License ( GNU GPL or simply GPL ) is the most widely used [ 6 ] free software license , originally written by Richard Stallman for the GNU Project . The GPL is the first copyleft license for general use, which means that derived works can only be distributed under the same license terms. Under this philosophy, the GPL grants the recipients of a computer program the rights of the free software definition and uses copyleft to ensure the freedoms are preserved, even when the work is changed or added to. This is in distinction to permissive free software licenses , of which the BSD licenses are the standard examples.
GNU General Public License - Wikipedia, the free encyclopedia
The GNU General Public License - GNU Project - Free Software Fou
The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. We, the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors.
After a year and a half of public consultation, thousands of comments, and four drafts, version 3 of the GNU General Public License ( GPLv3 ) was finally published on June 29, 2007. While there's been a lot of discussion about the license since the first draft appeared, not many people have talked about the benefits that it provides developers. We've published this guide to fill that gap. We'll start with a brief refresher on free software, copyleft, and the goals of the GPL.
A Quick Guide to GPLv3 - GNU Project - Free Software Foundation
Frequently Asked Questions about the GNU Licenses - GNU Project
What does “GPL” stand for? ( #WhatDoesGPLStandFor ) “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. Does free software mean using the GPL?"I would like to release a program I wrote under the GNU GPL, but I would like to use the same code in non-free programs.To release a non-free program is always ethically tainted, but legally there is no obstacle to your doing this. If you are the copyright holder for the code, you can release it under various different non-exclusive licenses at various times." by Nov 25
This is a brief explanation of how to place a program under the GNU General Public License , Lesser General Public License , or Affero General Public License . For the GNU Free Documentation License , we have a separate page . If you are looking for more detailed information, consider perusing our list of frequently asked questions about our licenses . If you are considering using the GNU Lesser General Public License, please read the article “ Why you shouldn't use the LGPL for your next library ” first.
How to use GNU licenses for your own software - GNU Project - Fr
Copyleft - Wikipedia, the free encyclopedia
The "reversed 'c' in a full circle" is the copyleft symbol. It is the copyright symbol mirrored. Unlike the copyright symbol, it has no legal meaning. Copyleft is a play on the word copyright to describe the practice of using copyright law to offer the right to distribute copies and modified versions of a work and requiring that the same rights be preserved in modified versions of the work.
The Mozilla Public License (MPL) is a free , open source , and detailed software license developed and maintained by the Mozilla Foundation . It is characterized as a hybridization of the modified BSD license and GNU General Public License (GPL) that seeks to balance the concerns of proprietary and open source developers. [ 7 ] It has undergone two revisions, [ 8 ] most recently to version 2.0 with the goals of greater simplicity and better compatibility with other licenses. [ 9 ] The MPL is the license for the Mozilla Application Suite , Mozilla Firefox , Mozilla Thunderbird , and other Mozilla software , [ 10 ] but it has been used by others, such as Adobe to license their Flex product line. [ 11 ] Version 1.1 was also notably adapted by companies to form derivative licenses like Sun Microsystems ' own Common Development and Distribution License . [ 12 ]
Mozilla Public License - Wikipedia, the free encyclopedia
MPL FAQ
This is the Mozilla MPL FAQ. It aims to answer the most common questions people have about using and distributing code under the MPL. Note that because much of the Mozilla codebase is MPL/GPL/LGPL tri-licensed, it's also possible to use and distribute some Mozilla products under the LGPL or GPL; in that case, some of these questions would have different answers. These explanations are not the license ; if in doubt, consult a lawyer. If you see any errors in this FAQ, or have suggestions for further questions, please email licensing@mozilla.org . I want to use software which is available under the MPL.
