CopyLeft License : Every Open Source License

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.

Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. This file is offered as-is, without any warranty.

OPaC Free Public License Copyright © 1997-1998, OPaC bright ideas, Suscévaz, Switzerland. All rights reserved. OPaC bright ideas (the "Licenser") is the owner of a computer software program known as the OPaC Class Library ("OPaC"). The OPaC Free Public License (this "License") applies to OPaC and to any translation or modification of this software program ("Derivative Works"). Hereinafter, translation is included without limitation in the term "modification". Each licensee is addressed as "you". "Program" will refer to any work that you distribute or publish, that in whole or in part contains or is derived from OPaC or any part thereof. OPaC is a copyrighted work whose copyright is held by the Licenser. By m...

Copyright (c) 1986 by University of Toronto. Written by Henry Spencer. Not derived from licensed software. Permission is granted to anyone to use this software for any purpose on any computer system, and to redistribute it freely, subject to the following restrictions: 1. The author is not responsible for the consequences of use of this software, no matter how awful, even if they arise from defects in it. 2. The origin of this software must not be misrepresented, either by explicit claim or by omission. 3. Altered versions must be plainly marked as such, and must not be misrepresented as being the original software. Beware that some of this code is subtly aware of the way operator precedence is structured in regular expres...

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.

Copyright (c) 1993 The Regents of the University of California. All rights reserved. This software was developed by the Computer Systems Engineering group at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and contributed to Berkeley. All advertising materials mentioning features or use of this software must display the following acknowledgement: This product includes software developed by the University of California, Lawrence Berkeley Laboratory. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. ...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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