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.

SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) Copyright (C) [dates of first publication] Silicon Graphics, Inc. All Rights Reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice including the dates of first publication and either this permission notice or a reference to http://oss.sgi.com/projects/FreeB/ shall ...

Noweb is copyright 1989-2000 by Norman Ramsey. All rights reserved. Noweb is protected by copyright. It is not public-domain software or shareware, and it is not protected by a ``copyleft'' agreement like the one used by the Free Software Foundation. Noweb is available free for any use in any field of endeavor. You may redistribute noweb in whole or in part provided you acknowledge its source and include this COPYRIGHT file. You may modify noweb and create derived works, provided you retain this copyright notice, but the result may not be called noweb without my written consent. You may sell noweb if you wish. For example, you may sell a CD-ROM including noweb. You may sell a derived work, provided that all source code for your...

Open Patent License Written by Victor Yodaiken Revised by Wind River Systems, Inc. The Open RTLinux Patent License ("License" or "Agreement") governs the royalty-free use of the process defined by U.S. Patent No. 5,995,745. Anyone can license the use of the Patented Process (as defined below) by agreeing to be bound by the terms of this License. Such person is considered to be the Licensee ("Licensee"). The Patented Process may be used, without any payment of a royalty, with two (2) types of software. The first type is software that operates under the terms of a GPL (as defined below). The second type is software operating under an Open RTLinux Execution Environment (as defined below). As long as the Licensee complies with ...

Yahoo! Public License, Version 1.0 (YPL) This Yahoo! Public License (this "Agreement") is a legal agreement that describes the terms under which Yahoo! Inc., a Delaware corporation having its principal place of business at 701 First Avenue, Sunnyvale, California 94089 ("Yahoo!") will provide software to you via download or otherwise ("Software"). By using the Software, you, an individual or an entity ("You") agree to the terms of this Agreement. In consideration of the mutual promises and upon the terms and conditions set forth below, the parties agree as follows: Grant of Copyright License 1.1 - Subject to the...

German Free Software License (c) Ministry of Science and Research, State of North-Rhine Westphalia 2004 Developed and created by Axel Metzger and Till Jaeger, Institut für Rechtsfragen der Freien und Open Source Software (Institute for Legal Issues On Free and Open Source Software), . Preamble Software is more than a mere economic asset. It is the technical foundation of the information society. Therefore, the issue of the public share in software is of particular importance. Conventionally licensed computer programs are distributed in object code form only, and the user is not entitled to modify or pass on the program to third parties. The license model for Free Software (synonym "Open Source Software"), however...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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