Welcome to CopyLeftLicense.com! Here you will find an archive of all the copyleft and open source licenses that have been published in the past. From Beerware Licensing, where you need to buy a beer for the open source programmer if you see them in a bar, to the fine-tuned and legally-curated Berkeley Software Distribution (BSD) License, we have it all. By knowing where we've come from, we might be able to learn where to go!

This archive contains 729 texts, with 682,528 words or 4,889,496 characters.

Licenses : Open Source and CopyLeft Licenses

A collection of open source and copyleft licenses.

Free Art license [ Copyleft Attitude ] Version 1.1 Preamble: With this Free Art license, you are given the right to freely copy, distribute and transform the artworks in the respect of the rights of the author. Far from ignoring the rights of the author, this license recognizes them and protects them. It reformulates their principle while making it possible for the public to make a creative use of the works of art. Whereas the use that is being made of the right to litterary and artistic property resulted in a restriction of the public's access to the works of art, the goal of the Free Art license is to support it. The intention is to open the access and to authorize the use of the resources of an artwork by the greatest number of pe...

NETHACK GENERAL PUBLIC LICENSE (Copyright 1989 M. Stephenson) (Based on the BISON general public license, copyright 1988 Richard M. Stallman) Everyone is permitted to copy and distribute verbatim copies of this license, but changing it is not allowed. You can also use this wording to make the terms for other programs. The license agreements of most software companies keep you at the mercy of those companies. By contrast, our general public license is intended to give everyone the right to share NetHack. To make sure that you get the rights we want you to have, we need to make restrictions that forbid anyone to deny you these rights or to ...

IPA Font License Agreement v1.0 (090305)   The Licensor provides the Licensed Program (as defined in Article 1 below) under the terms of this license agreement ("Agreement").  Any use, reproduction or distribution of the Licensed Program, or any exercise of rights under this Agreement by a Recipient (as defined in Article 1 below) constitutes the Recipient's acceptance of this Agreement.   Article 1 (Definitions) 1.         "Digital Font Program" shall mean a computer program containing, or used to render or display fonts. 2.         "Licensed Program" shall mean a Digital Font Program licensed by the Licensor under this Agreement. 3.         "Derived Program" shall mean a...

SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) Copyright (C) [dates of first publication] Silicon Graphics, Inc. All Rights Reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice including the dates of first publication and either this permission notice or a reference to http://oss.sgi.com/projects/FreeB/ shall ...

February 2002 Preamble -------- The Berkeley Software Distribution ("BSD") license has proven very effective over the years at allowing for a wide spread of work throughout both commercial and non-commercial products. For programmers whose primary intention is to improve the general quality of available software, it is arguable that there is no better license than the BSD license, as it permits improvements to be used wherever they will help, without idealogical or metallic constraint. This is of particular value to those who produce reference implementations of proposed standards: The case of TCP/IP clearly illustrates that freely and universally available implementations leads the rapid acceptance of standards -- often even be...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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