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.

---- Part 1: CMU/UCD copyright notice: (BSD like) ----- Copyright 1989, 1991, 1992 by Carnegie Mellon University Derivative Work - 1996, 1998-2000 Copyright 1996, 1998-2000 The Regents of the University of California All Rights Reserved Permission to use, copy, modify and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appears in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of CMU and The Regents of the University of California not be used in advertising or publicity pertaining to distribution of the software without specific written permission. CMU AN...

Microsoft maintains two licenses that have been certified by the Open Source Initiative (OSI). Certification by the OSI means that developers can be confident that the licenses meet the terms of the Open Source Definition. This page contains the text of those licenses; developers are free to use them as they wish within their works. On this page:Microsoft Public LicenseMicrosoft Reciprocal LicenseMicrosoft Public License (Ms-P

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. ...

[] Copyright [(C)] [by] [.] [All rights reserved][.] Permission to use, copy, modify and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies, [and] that both {the|that} copyright notice and this permission notice appear in supporting documentation[, and that the name [of] [or ] not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission]. [ makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.] [ DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING A...

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...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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