CopyLeft License : Every Open Source License

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.

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...

Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All rights reserved. License to copy and use this software is granted provided that it is identified as the "RSA Data Security, Inc. MD5 Message-Digest Algorithm" in all material mentioning or referencing this software or this function. License is also granted to make and use derivative works provided that such works are identified as "derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm" in all material mentioning or referencing the derived work. RSA Data Security, Inc. makes no representations concerning either the merchantability of this software or the suitability of this software for any particular purpose. It is provided "as is" without expres...

EU DataGrid Software License (EUDatagrid) Copyright (c) 2001 EU DataGrid. All rights reserved. This software includes voluntary contributions made to the EU DataGrid. For more information on the EU DataGrid, please see http://www.eu-datagrid.org/. Installation, use, reproduction, display, modification and redistribution of this software, with or without modification, in source and binary forms, are permitted. Any exercise of rights under this license by you or your sub-licensees is subject to the following conditions: 1. Redistributions of this software, with or without modification, must reproduce the above copyright notice and the above license statement as well as this list of conditions, in the software, the user docum...

Copyright 1992, 1993, 1994 Henry Spencer. All rights reserved. This software is not subject to any license of the American Telephone and Telegraph Company or of the Regents of the University of California. Permission is granted to anyone to use this software for any purpose on any computer system, and to alter it and redistribute it, subject to the following restrictions: 1. The author is not responsible for the consequences of use of this software, no matter how awful, even if they arise from flaws in it. 2. The origin of this software must not be misrepresented, either by explicit claim or by omission. Since few users ever read sources, credits must appear in the documentation. 3. Altered versions must be plainly marked as...

COMMON DEVELOPMENT AND DISTRIBUTION LICENSE (CDDL) Version 1.0 1. Definitions. 1.1. “Contributor” means each individual or entity that creates or contributes to the creation of Modifications. 1.2. “Contributor Version” means the combination of the Original Software, prior Modifications used by a Contributor (if any), and the Modifications made by that particular Contributor. 1.3. “Covered Software” means (a) the Original Software, or (b) Modifications, or (c) the combination of files containing Original Software with files containing Modifications, in each case including portions thereof. 1.4. “Executable” means the Covered Software in...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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