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.

Reciprocal Public License (RPL-1.5) Version 1.5, July 15, 2007 Copyright (C) 2001-2007 Technical Pursuit Inc., All Rights Reserved. PREAMBLE The Reciprocal Public License (RPL) is based on the concept of reciprocity or, if you prefer, fairness. In short, this license grew out of a desire to close loopholes in previous open source licenses, loopholes that allowed parties to acquire open source software and derive financial benefit from it without having to release their improvements or derivatives to the community which enabled them. This occurred any time an entity did not release their application to a "third party". While there is a certain freedom in this model of licensing, it struck the authors of the RPL as being unfai...

ARPHIC PUBLIC LICENSE Copyright (C) 1999 Arphic Technology Co., Ltd. 11Fl. No.168, Yung Chi Rd., Taipei, 110 Taiwan All rights reserved except as specified below. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is forbidden. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the ARPHIC PUBLIC LICENSE specifically permits and encourages you to use this software, provided that you give the recipients all the rights that we gave you and make sure they can get the modifications of this software. Legal Terms 0. Definitions: Throughout this License, "Font" means the TrueType fonts "AR PL Mingti2L Bi...

License for Lua 4.0 and earlier versions Copyright © 1994–2002 Tecgraf, PUC-Rio. Permission is hereby granted, without written agreement and without license or royalty fees, to use, copy, modify, translate, and distribute this software and its documentation (hereby called the "package") for any purpose, including commercial applications, subject to the following conditions: The above copyright notice and this permission notice shall appear in all copies or substantial portions of this package. The origin of this package must not be misrepresented; you must not claim that you wrote the original package. If you use this package in a product, an acknowledgment in the product documentation would be greatl...

The OpenLDAP Public License Version 2.6, 14 June 2001 Redistribution and use of this software and associated documentation ("Software"), with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain copyright statements and notices. 2. Redistributions in binary form must reproduce applicable copyright statements and notices, this list of conditions, and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Redistributions must contain a verbatim copy of this document. 4. The names and trademarks of the authors and copyright holders must not be used in advertising or otherwise to promote the sale, ...

Academic Free License (“AFL”) v. 3.0 This Academic Free License (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 Academic Free 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, modify, or arrange the Original Work, thereby creating derivative works ("Derivative W...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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