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.

The Zend Engine License, version 2.00 Copyright (c) 1999-2002 Zend Technologies Ltd. All rights reserved. Redistribution and use in source and binary forms, with or without modification, is 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. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. The names "Zend" and "Zend Engine" must not be used to endorse or promote products derived from this software without prior permission from...

The LaTeX Project Public License =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- LPPL Version 1.3b 2006-01-07 Copyright 1999 2002-2006 LaTeX3 Project Everyone is allowed to distribute verbatim copies of this license document, but modification of it is not allowed. PREAMBLE ======== The LaTeX Project Public License (LPPL) is the primary license under which the the LaTeX kernel and the base LaTeX packages are distributed. You may use this license for any work of which you hold the copyright and which you wish to distribute. This license may be particularly suitable if your work is TeX-related (such as a LaTeX package), but you may use it with small modifications even if your work is unrelated to TeX. The section `WHETHER AND HOW T...

The Educational Community License This Educational Community License (the "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: Copyright (c) Licensed under the Educational Community License version 1.0 This Original Work, including software, source code, documents, or other related items, is being provided by the copyright holder(s) subject to the terms of the Educational Community License. By obtaining, using and/or copying this Original Work, you agree that you have read, understand, and will comply with the following terms and conditions of the Educational Community License...

Copyright (c) <year> <copyright holders> The Universal Permissive License (UPL), Version 1.0 Subject to the condition set forth below, permission is hereby granted to any person obtaining a copy of this software, associated documentation and/or data (collectively the "Software"), free of charge and under any and all copyright rights in the Software, and any and all patent rights owned or freely licensable by each licensor hereunder covering either (i) the unmodified Software as contributed to or provided by such licensor, or (ii) the Larger Works (as defined below), to deal in both (a) the Software, and (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if one is included with the Software (ea...

# Open Works License This is version 0.4 of the Open Works License. ## Terms Permission is hereby granted by the copyright holder(s), author(s), and contributor(s) of this work, to any person who obtains a copy of this work, in any form, to reproduce, modify, distribute, publish, sell, use, or otherwise deal in the licensed material without restriction, provided the following conditions are met: 1. Redistributions must retain this list of conditions and the following disclaimer. 2. Redistributions must retain any applicable notices of attribution and copyright. 3. This license does not grant permission to use the trade names, trademarks, service marks, product names, or other identifications used by the licensor except as...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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