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.

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

EFF Open Audio License: Version 1.0 I. Preamble II. Terms of Use III. How to Use this License I. PREAMBLE Principles Digital technology and the Internet can empower artists to reach a worldwide audience and to build upon each other's ideas and imagination with extremely low production and distribution costs. Many software developers, through both the open source software initiative and the free software movement, have long taken advantage of these facts to create a vibrant community of shared software that benefits creators and the public. EFF's Open Audio License provides a legal tool that borrows from both movements providing freedom and openness to use music and other expressive works in new wa...

Computer Associates Trusted Open Source LicenseVersion 1.1 PLEASE READ THIS DOCUMENT CAREFULLY AND IN ITS ENTIRETY. THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS COMPUTER ASSOCIATES TRUSTED OPEN SOURCE LICENSE ("LICENSE"). ANY USE, REPRODUCTION, MODIFICATION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES THE RECIPIENT'S ACCEPTANCE OF THIS LICENSE. License Background Computer Associates International, Inc. (CA) believes in open source. We believe that the open source development approach can take appropriate software programs to unprecedented levels of quality, growth, and innovation. To demonstrate our continuing commitment to open source, we are releasing the Program (as defined below) under this License. T...

A. HISTORY OF THE SOFTWARE ========================== Python was created in the early 1990s by Guido van Rossum at Stichting Mathematisch Centrum (CWI, see http://www.cwi.nl) in the Netherlands as a successor of a language called ABC. Guido remains Python's principal author, although it includes many contributions from others. In 1995, Guido continued his work on Python at the Corporation for National Research Initiatives (CNRI, see http://www.cnri.reston.va.us) in Reston, Virginia where he released several versions of the software. In May 2000, Guido and the Python core development team moved to BeOpen.com to form the BeOpen PythonLabs team. In October of the same year, the PythonLabs team moved to Digital Creations (now Zope ...

NonCommercial 1.0 CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE LEGAL SERVICES. DISTRIBUTION OF THIS DRAFT LICENSE DOES NOT CREATE AN ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES REGARDING THE INFORMATION PROVIDED, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM ITS USE. License THE WORK (AS DEFINED BELOW) IS PROVIDED UNDER THE TERMS OF THIS CREATIVE COMMONS PUBLIC LICENSE ("CCPL" OR "LICENSE"). THE WORK IS PROTECTED BY COPYRIGHT AND/OR OTHER APPLICABLE LAW. ANY USE OF THE WORK OTHER THAN AS AUTHORIZED UNDER THIS LICENSE IS PROHIBITED. BY EXERCISING ANY RIGHTS TO THE WORK PROV...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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