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.

BiOS Mutual Non-Assertion Agreement Background: A. Access to enabling technologies, tools and platforms for basic innovation is important. It is undesirable that the delivery of products, whether for public good or for profit, should be encumbered by the terms under which such enabling technologies are made available. Research and development will be most efficient, effective, economical and equitable if these tools are available readily to all in a way that protects capability to use the technology and improvements. B. The BIOS Initiative (www.bios.net) sets out to ensure common access to the tools of innovation, to promote the development and improvement of these tools, and to make such developments and improvements freely acces...

RealNetworks Public Source License Version 1.0 (Rev. Date October 28, 2002) 1. General Definitions. This License applies to any program or other work which RealNetworks, Inc., or any other entity that elects to use this license, ("Licensor") makes publicly available and which contains a notice placed by Licensor identifying such program or work as "Original Code" and stating that it is subject to the terms of this RealNetworks Public Source License version 1.0 (or subsequent version thereof) ("License"). You are not required to accept this License. However, nothing else grants You permission to use, copy, modify or distribute the software or its derivative works. These actions are prohibited by law if You ...

This Transitive Grace Period Public Licence (the "License") applies to any original work of authorship (the "Original Work") whose owner (the "Licensor") has placed the following licensing notice adjacent to the copyright notice for the Original Work: Licensed under the Transitive Grace Period Public Licence version 1.0 Grant of Copyright License. Licensor grants You a worldwide, royalty-free, non-exclusive, sublicensable license, for the duration of the copyright, to do the following: to reproduce the Original Work in copies, either alone or as part of a collective work; to translate, adapt, alter, transform, modify, or arrange the Original Work, thereby creating derivative works ("Derivative Works") based upon the O...

GNU LIBRARY GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1991 Free Software Foundation, Inc. 51 Franklin St, 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. [This is the first released version of the library GPL. It is numbered 2 because it goes with version 2 of the ordinary GPL.] Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public Licenses are intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This license, the Libra...

1. Definitions 1.1. "Contributor" means each individual or legal entity that creates, contributes to the creation of, or owns Covered Software. 1.2. "Contributor Version" means the combination of the Contributions of others (if any) used by a Contributor and that particular Contributor's Contribution. 1.3. "Contribution" means Covered Software of a particular Contributor. 1.4. "Covered Software" means Source Code Form to which the initial Contributor has attached the notice in Exhibit A, the Executable Form of such Source Code Form, and Modifications of such Source Code Form, in each case including portions thereof. 1.5. "Incompatible With Secondary Licenses" means (a) that the initial C...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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