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.

Hybrid BSD (half BSD, half zlib) This program, "bzip2", the associated library "libbzip2", and all documentation, are copyright (C) 1996-2006 Julian R Seward. 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. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 3. Altered source versions must be plai...

ZPL 2.0 Zope Public License (ZPL) Version 2.0 This software is Copyright (c) Zope Corporation (tm) and Contributors. All rights reserved. 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 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 documentati...

PUBLIC DOCUMENTATION LICENSE Version 1.0 1.0 DEFINITIONS. 1.1. "Commercial Use" means distribution or otherwise making the Documentation available to a third party. 1.2. "Contributor" means a person or entity who creates or contributes to the creation of Modifications. 1.3. "Documentation" means the Original Documentation or Modifications or the combination of the Original Documentation and Modifications, in each case including portions thereof. 1.4. "Electronic Distribution Mechanism" means a mechanism generally accepted for the electronic transfer of data. 1.5. "Initial Writer" means the individual or entity identified as the Initial Writer in the notice required by the Appendix. 1.6. ...

AFFERO GENERAL PUBLIC LICENSE Version 1, March 2002 Copyright © 2002 Affero Inc. 510 Third Street - Suite 225, San Francisco, CA 94107, USA This license is a modified version of the GNU General Public License copyright (C) 1989, 1991 Free Software Foundation, Inc. made with their permission. Section 2(d) has been added to cover use of software over a computer network. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast...

GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some ot...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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