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.

EFF Open Audio License: Version 1.0.1 Changes from ver. 1.0[.0]: Typo corrections; no substantive changes. I. Preamble II. Terms of Use III. How to Use this License I. PREAMBLE Principles Digital technology and the Internet can empower artists to reach a worldwide audience and to build upon each other's ideas and imagination with extremely low production and distribution costs. Many software developers, through both the open source software initiative and the free software movement, have long taken advantage of these facts to create a vibrant community of shared software that benefits creators and the public. EFF's Open Audio License provides a legal tool that borrows from both movements providi...

ORIGINAL LICENSE: This software is (c) Copyright 1992 by Panagiotis Tsirigotis The author (Panagiotis Tsirigotis) grants permission to use, copy, and distribute this software and its documentation for any purpose and without fee, provided that the above copyright notice extant in files in this distribution is not removed from files included in any redistribution and that this copyright notice is also included in any redistribution. Modifications to this software may be distributed, either by distributing the modified software or by distributing patches to the original software, under the following additional terms: 1. The version number will be modified as follows: a. The first 3 components of the version number (i.e ...

VOSTROM Public License for Open Source Copyright (c) 2007 VOSTROM Holdings, Inc. This VOSTROM Holdings, Inc. (VOSTROM) Distribution (code and documentation) is made available to the open source community as a public service by VOSTROM. Contact VOSTROM at license@vostrom.com for information on other licensing arrangements (e.g. for use in proprietary applications). Under this license, this Distribution may be modified and the original version and modified versions may be copied, distributed, publicly displayed and performed provided that the following conditions are met: 1. Modified versions are distributed with source code and documentation and with permission for others to use any code and documentation (whether in original or m...

Honest Public License (HPL) Version 1.1, November 2006 This license is a modified version of the GNU General Public License copyright (C) 1989, 1991 Free Software Foundation, Inc. and has been made with their permission, but has not been endorsed by the Free Software Foundation. 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 hold...

SENDMAIL LICENSE The following license terms and conditions apply, unless a redistribution agreement or other license is obtained from Sendmail, Inc., 6475 Christie Ave, Third Floor, Emeryville, CA 94608, USA, or by electronic mail at license@sendmail.com. License Terms: Use, Modification and Redistribution (including distribution of any modified or derived work) in source and binary forms is permitted only if each of the following conditions is met: 1. Redistributions qualify as "freeware" or "Open Source Software" under one of the following terms: (a) Redistributions are made at no charge beyond the reasonable cost of materials and delivery. (b) Redistributions are accompanied by a copy of the Source Code...

People : Open Source Enthusiasts

A collection of open source and copyleft license writers.

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