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 SOFTWARE LICENSING AGREEMENT CeCILL Notice This Agreement is a free software license that is the result of discussions between its authors in order to ensure compliance with the two main principles guiding its drafting: firstly, its conformity with French law, both as regards the law of torts and intellectual property law, and the protection that it offers to authors and the holders of economic rights over software. secondly, compliance with the principles for the distribution of free software: access to source codes, extended user-rights. The following bodies are the authors of the license CeCILL1

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...

ZPL 2.1 Zope Public License (ZPL) Version 2.1 A copyright notice accompanies this license document that identifies the copyright holders. This license has been certified as open source. It has also been designated as GPL compatible by the Free Software Foundation (FSF). Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions in source code must retain the accompanying copyright notice, this list of conditions, and the following disclaimer. Redistributions in binary form must reproduce the accompanying copyright notice, this list of conditions, and the following disclaimer in t...

Lucent Public License Version 1.02 (LPL-1.02) The following is a Lucent license template. To generate your own. change the values of OWNER, ORGANIZATION, and YEAR from their original values as given here, and substitute your own. = Lucent Technologies Inc. = LUCENT = 2003 Here is the license template: THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS PUBLIC LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT. 1. DEFINITIONS "Contribution" means: in the case of (""), the Original Program, and in the case of each Contributor, changes to the Program, and additions to the Program; where such changes and/or addit...

Microsoft maintains two licenses that have been certified by the Open Source Initiative (OSI). Certification by the OSI means that developers can be confident that the licenses meet the terms of the Open Source Definition. This page contains the text of those licenses; developers are free to use them as they wish within their works. On this page:Microsoft Public LicenseMicrosoft Reciprocal LicenseMicrosoft Public License (Ms-P

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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