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.

Simple Machines License (SMF 1.0 and 1.1) Definitions 1. This Package is defined as all of the files within any archive file or any group of files released in conjunction by Simple Machines, Simple Machines, or a derived or modified work based on such files. 2. A Modification, or a Mod, is defined as instructions, to be performed manually or in an automated manner, that alter any part of this Package. 3. A Modified Package is defined as this Package or a derivative of it with one or more Modification applied to it. 4. Distribution is defined as allowing one or more other people to in any way download or receive a copy of this Package, a Modified Package, or a derivative of this Package. 5. The Software is def...

Reciprocal Public License (RPL-1.5) Version 1.5, July 15, 2007 Copyright (C) 2001-2007 Technical Pursuit Inc., All Rights Reserved. PREAMBLE The Reciprocal Public License (RPL) is based on the concept of reciprocity or, if you prefer, fairness. In short, this license grew out of a desire to close loopholes in previous open source licenses, loopholes that allowed parties to acquire open source software and derive financial benefit from it without having to release their improvements or derivatives to the community which enabled them. This occurred any time an entity did not release their application to a "third party". While there is a certain freedom in this model of licensing, it struck the authors of the RPL as being unfai...

Aladdin Enterprises hereby grants to anyone the permission to apply this License to their own work, as long as the entire License (including the above notices and this paragraph) is copied with no changes, additions, or deletions except for changing the first paragraph of Section 0 to include a suitable description of the work to which the license is being applied and of the person or entity that holds the copyright in the work, and, if the License is being applied to a work created in a country other than the United States, replacing the first paragraph of Section 6 with an appropriate reference to the laws of the appropriate country. This License is not an Open Source license: among other things, it places restrictions on d...

Free Art License [ Copyleft Attitude ] version 1.2 Preamble : With this Free Art License, you are authorised to copy, distribute and freely transform the work of art while respecting the rights of the originator. Far from ignoring the author's rights, this license recognises them and protects them. It reformulates their principle while making it possible for the public to make creative use of the works of art. Whereas current literary and artistic property rights result in restriction of the public's access to works of art, the goal of the Free Art License is to encourage such access. The intention is to make work accessible and to authorise the use of its resources by the greatest number of people: to use it in order to increase its...

SGI FREE SOFTWARE LICENSE B (Version 1.0 [1/25/2000]) 1. Definitions. "Additional Notice Provisions" means such additional provisions as appear in the Notice in Original Code under the heading "Additional Notice Provisions." "API" means an application programming interface established by SGI in conjunction with the Original Code. "Covered Code" means the Original Code or Modifications or the combination of the Original Code and Modifications, in each case including portions thereof. "Hardware" means any physical device that accepts input, processes input, stores the results of processing, and/or provides output. "Larger Work" means a work which combines Covered Code or portions thereof with code not governed by the terms of this L...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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