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.

Non-Profit Open Software License 3.0 (NPOSL-3.0) This Non-Profit Open Software License ("Non-Profit OSL") version 3.0 (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 Non-Profit Open Software License version 3.0 1) 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: a) to reproduce the Original Work in copies, either alone or as part of a collective work; b) to translate, adapt, alter, transform, modi...

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 ...

Copyright (C) 2007, 2008, 2009, 2010 Karl Berry. Copyright (C) 1988, 1994, 2007 Stephen Gilmore. Copyright (C) 1994, 1995, 1996 Torsten Martinsen. Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Permission is granted to copy and distribute translations of this manual into another language, under the above conditions for modified versions.

1. DefinitionsAccess control mechanism: a technological measure which, in the ordinary course of its operation, requires the application of information, or a process or a treatment, with the authority of the copyright owner or related rights owner, to gain access to the work.Acts authorised by licensor: acts concerning granted rights (in particular, act of access, act of copy, act of modification, act of sharing).Acts not authorised by licensor: acts concerning copyright or possible moral rights.Author/s: the creator/s of an original work or the creator/s of a derivative work.Broadcasting: the use of any means of distribution over a distance, such as telegraph, telephone, radio, television and other comparable media, including comm...

NASA OPEN SOURCE AGREEMENT VERSION 1.0 THIS OPEN SOURCE AGREEMENT ("AGREEMENT") DEFINES THE RIGHTS OF USE, REPRODUCTION, DISTRIBUTION, MODIFICATION AND REDISTRIBUTION OF CERTAIN COMPUTER SOFTWARE ORIGINALLY RELEASED BY THE UNITED STATES GOVERNMENT AS REPRESENTED BY THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION ("NASA"). ANYONE WHO USES, REPRODUCES, DISTRIBUTES, MODIFIES OR REDISTRIBUTES THE SUBJECT SOFTWARE, AS DEFINED HEREIN, OR ANY PART THEREOF, IS, BY THAT ACTION, ACCEPTING IN FULL THE RESPONSIBILITIES AND OBLIGATIONS CONTAINED IN THIS AGREEMENT. NASA Original Software Designation: _____________________________________ NASA Original Software Title: ___________________________________________ User Registration requested, ...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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