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.

AFFERO GENERAL PUBLIC LICENSE Version 2, November 2007 Copyright © 2007 Affero Inc. 510 Third Street - Suite 225, San Francisco, CA 94107, USA This is version 2 of the Affero General Public License. It gives each licensee permission to distribute the Program or a work based on the Program (as defined in version 1 of the Affero GPL) under the GNU Affero General Public License, version 3 or any later version. If the Program was licensed under version 1 of the Affero GPL "or any later version", no additional obligations are imposed on any author or copyright holder of the Program as a result of a licensee's choice to follow this version 2 of the Affero GPL.

FREE SOFTWARE LICENSING AGREEMENT CeCILL Notice This Agreement is a free software license that is the result of discussions between its authors in order to ensure compliance with the two main principles guiding its drafting: firstly, its conformity with French law, both as regards the law of torts and intellectual property law, and the protection that it offers to authors and the holders of economic rights over software. secondly, compliance with the principles for the distribution of free software: access to source codes, extended user-rights. The following bodies are the authors of the license CeCILL1

NETSCAPE PUBLIC LICENSEVersion 1.0 1. Definitions. 1.1. ``Contributor'' means each entity that creates or contributes to the creation of Modifications. 1.2. ``Contributor Version'' means the combination of the Original Code, prior Modifications used by a Contributor, and the Modifications made by that particular Contributor. 1.3. ``Covered Code'' means the Original Code or Modifications or the combination of the Original Code and Modifications, in each case including portions thereof. 1.4. ``Electronic Distribution Mechanism'' means a mechanism generally accepted in the software development community for the electronic transfer of data. 1.5. ``Executable'' means C...

Eclipse Public License - v 1.0 THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT. 1. DEFINITIONS "Contribution" means: a) in the case of the initial Contributor, the initial code and documentation distributed under this Agreement, and b) in the case of each subsequent Contributor: i) changes to the Program, and ii) additions to the Program; where such changes and/or additions to the Program originate from and are distributed by that particular Contributor. A Contribution 'originates' from a Contributor if it was added to the Program by such Contributor itself or an...

skyBuilders Open Source License Draft Version 1.1 Copyright (c) 1999-2002 skyBuilders.com, Inc. 77 Huron Avenue, Cambridge, MA 02138, USA. All rights reserved. (This license itself may be modified and adapted for non-skyBuilders purposes.) skyBuilders.com, Inc. and all Contributors hereby grant a world-wide, royalty-free, non-exclusive license, subject to third party intellectual property claims, to use, reproduce, modify, display, perform, sublicense and distribute this software (or portions thereof) with or without modifications, and/or as part of a larger work. Neither the name or trademarks of skyBuilders.com nor the names or trademarks of other Contributors may be used to endorse or promote products derived from this so...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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