Free license
From The Art and Popular Culture Encyclopedia
(Redirected from Open license)
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A free license or open license is a license agreement which contains provisions that allow other individuals to reuse another creator's work, giving them four major freedoms. Without a special license, these uses are normally prohibited by copyright law or commercial license. Most free licenses are worldwide, royalty-free, non-exclusive, and perpetual (see copyright durations). Free licenses are often the basis of crowdsourcing and crowdfunding projects.
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Philosophy
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Classification and licenses
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By freedom
- Agreement, which is related to the public domain
- Creative Commons CC0
- WTFPL
- Unlicense
- Public Domain Dedication and License (PDDL)<ref>PDDL 1.0 on opendatacommons.org</ref>
- Permissive licenses
- BSD License
- MIT License
- Mozilla Public License (file-based permissive copyleft)
- Creative Commons Attribution
- Copyleft licenses
- GNU GPL, LGPL (weaker copyleft), AGPL (stronger copyleft)
- Creative Commons Attribution Share-Alike
- Mozilla Public License
- Common Development and Distribution License
- GFDL (without invariant sections)
- Free Art License
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By type of content
- Free software licences
- Open Content
- Free content licenses
- Open-source hardware licenses
- Database licenses (Creative Commons v4 and Open Database Licence)
- Open patent licenses
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By authors
- Free Software Foundation
- Open Source Initiative
- Creative Commons
- Microsoft
- Open Content Project
- Open Data Commons from Open Knowledge Foundation
- Public Domain Dedication and License (PDDL)
- Attribution License (ODC-By)
- Open Database License (ODC-ODbL)
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Problems
- License compatibility
- License proliferation
- Permissive free software Commons has affiliates in more than 100 jurisdictions all over the world.
Unless indicated otherwise, the text in this article is either based on Wikipedia article "Free license" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.
