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 source code in this package is copyright 1999-2010 by Andrew Plotkin. You may copy and distribute it freely, by any means and under any conditions, as long as the code and documentation is not changed. You may also incorporate this code into your own program and distribute that, or modify this code and use and distribute the modified version, as long as you retain a notice in your program or documentation which mentions my name and the URL shown above.

CeCILL FREE SOFTWARE LICENSE AGREEMENT Notice This Agreement is a Free Software license agreement that is the result of discussions between its authors in order to ensure compliance with the two main principles guiding its drafting: firstly, compliance with the principles governing the distribution of Free Software: access to source code, broad rights granted to users, secondly, the election of a governing law, French law, with which it is conformant, both as regards the law of torts and intellectual property law, and the protection that it offers to both authors and holders of the economic rights over software. The authors of the CeCILL1 license are: Commissariat à l'Energie Atomique - CEA,...

Preamble:  This license aims at specifying the legal conditions of the re-use of public information that is freely reusable.  It particularly specifies the rights to adapt the public information with a view to a commercial activity or not. The rights conceded by the present license do not imply any transfer of property right on the public information.  It aims at facilitating the re-use of public information in the context of the development of the information society.  According to Article 8 of the 17th November 2003 2003/98/CE directive “The state institutions may authorize the re-use of documents without any conditions or may impose conditions, possibly by the means of a license which would deal with relevant questions. Th...

SUN COMMUNITY SOURCE LICENSE Version 2.8 (Rev. Date January 17, 2001) RECITALS Original Contributor has developed Specifications and Source Code implementations of certain Technology; and Original Contributor desires to license the Technology to a large community to facilitate research, innovation andproduct development while maintaining compatibility of such products with the Technology as delivered by Original Contributor; and Original Contributor desires to license certain Sun Trademarks for the purpose of branding products that are compatible with the relevant Technology delivered by Original Contributor; and You desire to license the Technology and possibly certain Sun Trademarks from Original Contributor on the terms a...

-------------------------------------------------------------------- The PHP License, version 3.0 Copyright (c) 1999 - 2006 The PHP Group. All rights reserved. -------------------------------------------------------------------- Redistribution and use in source and binary forms, with or without modification, is permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. The name "PH...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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