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.

Copyright (C) 2001 Leptonica. All rights reserved. This software is distributed in the hope that it will be useful, but with NO WARRANTY OF ANY KIND. No author or distributor accepts responsibility to anyone for the consequences of using this software, or for whether it serves any particular purpose or works at all, unless he or she says so in writing. Everyone is granted permission to copy, modify and redistribute this source code, for commercial or non-commercial purposes, with the following restrictions: (1) the origin of this source code must not be misrepresented; (2) modified versions must be plainly marked as such; and (3) this notice may not be removed or altered from any source or modified source distribution.

Honest Public License (HPL) Version 1, August 2006 This license is a modified version of the GNU General Public License copyright (C) 1989, 1991 Free Software Foundation, Inc. but has not been made with their permission. Section 2(d) has been added to cover use of software over a computer network.   Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. The precise terms and conditions for copying, distribution and modification follow. TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this Honest...

Copyright (C) 1995 by Donald Arseneau This file may be freely transmitted and reproduced, but it may not be changed unless the name is changed also (except that you may freely change the paper-size option for \documentclass).

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...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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