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.

OCLC Research Public License 2.0 Terms & Conditions Of Use May, 2002 Copyright © 2002. OCLC Online Computer Library Center, Inc. All Rights Reserved PLEASE READ THIS DOCUMENT CAREFULLY. BY DOWNLOADING OR USING THE CODE BASE AND/OR DOCUMENTATION ACCOMPANYING THIS LICENSE (THE "License"), YOU AGREE TO THE FOLLOWING TERMS AND CONDITIONS OF THIS LICENSE. Section 1. Your Rights Subject to these terms and conditions of this License, the OCLC Office of Research (the "Original Contributor") and each subsequent contributor (collectively with the Original Contributor, the "Contributors") hereby grant you a non-exclusive, worldwide, no-charge, transferable license to execute, prepare derivative works of, and distribute (i...

Copyright (C) 1994-2006 The XFree86 Project, Inc. All rights reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: 1. Redistributions of source code must retain the above copyright notice, this list of conditions, and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and th...

The rental, public playing, broadcasting, copying and distribution of this musical piece in whole or in part, in any format, and usage of the lyrics in whole or in part, is PERMITTED, even without the specific consent of the holder of the copyright for this work, under the condition that any by-product and derived work of this musical piece wil be published under the same conditions and accompanied by this statement.


• "The Software shall be used for Good, not Evil." (From : JSON License.)

Academic Free License Version 1.1 This Academic Free License applies to any original work of authorship (the "Original Work") whose owner (the "Licensor") has placed the following notice immediately following the copyright notice for the Original Work: "Licensed under the Academic Free License version 1.1." Grant of License. Licensor hereby grants to any person obtaining a copy of the Original Work ("You") a world-wide, royalty-free, non-exclusive, perpetual, non-sublicenseable license (1) to use, copy, modify, merge, publish, perform, distribute and/or sell copies of the Original Work and derivative works thereof, and (2) under patent claims owned or controlled by the Licensor that are embodied in the Original Work as furn...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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