Harman Patil (Editor)

Free license

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Free license

A free license or open license is a license agreement which contains conditions permitted to the user from the holder on a specific list of uses for his work, which gives him four major freedoms.

Contents

Without a special license, these uses are prohibited by the laws of copyright.

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.

The invention of the term "free license" and the focus on the rights of users were connected to the sharing traditions of the hacker culture of the 1970s public domain software ecosystem, the social and political free software movement (since 1980) and the Open source movement (since the 1990s).

These rights were codified by different groups and organizations for different domains in Free Software Definition, Open Source Definition, Debian Free Software Guidelines, Definition of Free Cultural Works and the Open definition. These definitions were then transformed into licenses, utilizing the copyright as legal mechanism. Since then, ideas of free/open licenses spread into different spheres of society.

Open source, free culture (unified as Free and open source movement), anticopyright, Wikimedia Foundation projects, Public Domain advocacy groups and pirate parties are connected with free and open licenses.

By freedom

  • Agreement, which is related to the public domain
  • Creative Commons' CC0
  • WTFPL
  • Unlicense
  • Public Domain Dedication and License (PDDL)
  • 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
  • By type of content

  • Free software licences
  • The Free Software Definition
  • Open Content
  • Open Content License
  • Open Publication License
  • Free content licenses
  • Definition of Free Cultural Works
  • Open-source hardware licenses
  • Database licenses (Creative Commons v4 and Open Database Licence)
  • Open patent licenses
  • By authors

  • Free Software Foundation
  • Open Source Initiative
  • Creative Commons
  • Microsoft
  • Microsoft Public License
  • Microsoft Reciprocal License
  • 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)
  • Problems

  • License compatibility
  • License proliferation
  • Permissive vs. copyleft
  • By countries

    Creative Commons has affiliates in more than 100 jurisdictions all over the world.

    European Union

    EUPL was created in the European Union.

    Germany

    Harald Welte created gpl-violations.org

    References

    Free license Wikipedia