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.

The Physnet Package License Preamble The intent of this document is to state the conditions under which a Physnet Package may be copied, such that the Copyright Holder maintains some semblance of artistic control over the development of the package, while giving the users of the package the right to use and distribute the Package in a more-or-less customary fashion plus the right to make reasonable modifications. This document is a slight modification of one issued by Larry Wall (http://language.perl.com/misc/Artistic.html). Definitions "Package" refers to any collection of files distributed by the Copyright Holder, in whatever form, and derivatives of that collection of files created through textual or format modifi...

Version 6.6, April 2013 OPEN CASCADE releases and makes publicly available the source code of the software Open CASCADE Technology to the free software development community under the terms and conditions of this license. It is not the purpose of this license to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this license has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is w...

The "No problem Bugroff" license. Richard Stallman of the Free Software Foundation devised, in addition to some marvelous software, the GNU General Public License (GPL for short). Or the CopyLeft it is sometimes called. It is quite a revolutionary document, using the "copyright" tool to to protect your right to use free software. Unfortunately using copyright to protect free software is a lot like using a Jackal to guard the hens. In fact, various inconveniences relating to this have resulted in modifications such as the LGPL (Library General Public License) and more recently the NPL (Netscape Public License) I call these matters mere inconveniences, the real damage will occur when the Jackal's, (sorry, I mean lawye...

Common Public Attribution License Version 1.0 (CPAL-1.0) 1. “Definitions” 1.0.1 “Commercial Use” means distribution or otherwise making the Covered Code available to a third party. 1.1 “Contributor” means each entity that creates or contributes to the creation of Modifications. 1.2 “Contributor Version” means the combination of the Original Code, prior Modifications used by a Contributor, and the Modifications made by that particular Contributor. 1.3 “Covered Code” means the Original Code or Modifications or the combination of the Original Code and Modifications, in each case including portions thereof. 1.4 “Electronic Distribution Mechanism” means a mechanism generally accepted in the software ...

This file was added by Clea F. Rees on 2008/11/30 with the permission of Dean Guenther and pointers to this file were added to all source files. Unlimited copying and redistribution of each of the files is permitted as long as the file is not modified. Modifications, and redistribution of modified versions, are also permitted, but only if the resulting file is renamed. The copyright holder is Washington State University. The original author of the fonts is Janene Winter. The primary contact (as of 2008) is Dean Guenther.

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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