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.

Version 1.0.5 of 10 December 2007 Copyright © 1996-2007 Julian Seward This program, bzip2, the associated library libbzip2, and all documentation, are copyright © 1996-2007 Julian 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: • Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. • 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 i...

Contents Preamble Warranty Distribution Notes LPPL Version 1.0 1999-03-01 Copyright 1999 LaTeX3 Project Everyone is permitted to copy and distribute verbatim copies of this license document, but modification is not allowed. PREAMBLE The LaTeX Project Public License (LPPL) is the license under which the base LaTeX distribution is distributed. As described below you may use this licence for any software that you wish to distribute. It may be particularly suitable if your software is TeX related (such as a LaTeX package file) but it may be used for any software, even if it is unrelated to TeX. To use this license, the files of your distribution ...

MOZILLA 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 Co...

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...

RECIPROCAL PUBLIC LICENSE Version 1.1, November 1, 2002 Copyright (C) 2001-2002 Technical Pursuit Inc., All Rights Reserved. PREAMBLE This Preamble is intended to describe, in plain English, the nature, intent, and scope of this License. However, this Preamble is not a part of this License. The legal effect of this License is dependent only upon the terms of the License and not this Preamble. This License is based on the concept of reciprocity. In exchange for being granted certain rights under the terms of this License to Licensor's Software, whose Source Code You have access to, You are required to reciprocate by providing equal access and rights to all third parties to the Source Code of any Modifications, ...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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