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.

[] Copyright [(C)] [by] [.] [All rights reserved][.] Permission to use, copy, modify and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies, [and] that both {the|that} copyright notice and this permission notice appear in supporting documentation[, and that the name [of] [or ] not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission]. [ makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.] [ DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING A...

Creative Commons Legal Code Attribution-ShareAlike 3.0 Unported CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE LEGAL SERVICES. DISTRIBUTION OF THIS LICENSE DOES NOT CREATE AN ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES REGARDING THE INFORMATION PROVIDED, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM ITS USE. License THE WORK (AS DEFINED BELOW) IS PROVIDED UNDER THE TERMS OF THIS CREATIVE COMMONS PUBLIC LICENSE ("CCPL" OR "LICENSE"). THE WORK IS...

Note that this license is not endorsed by the Free Software Foundation. It is available here as a convenience to readers of the license list. DESIGN SCIENCE LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION Copyright © 1999-2001 Michael Stutz <stutz@dsl.org> Verbatim copying of this document is permitted, in any medium. 0. PREAMBLE. Copyright law gives certain exclusive rights to the author of a work, including the rights to copy, modify and distribute the work (the "reproductive," "adaptative," and "distribution" rights). The idea of "copyleft" is to willfully revoke the exclusivity of those rights under certain terms and conditions, so that anyone can copy and distribute the work ...

Copyright (c) 1998-2011 The OpenSSL Project. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are 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. All advertising materials mentioning features or use of this software must display the following acknowledgment: "This product includes software developed by the OpenSSL Project for us...

ZPL 1.1 Zope Public License (ZPL) Version 1.1 Copyright (c) Zope Corporation. All rights reserved. This license has been certified as open source. 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 above copyright notice, this list of conditions, and the following disclaimer. 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. All advertising materials and documentation mentioning feature...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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