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# Awesome Open Source Licensing



## Contents



- [Open Source Basics](#open-source-basics)

- [To bookmarks](#to-bookmarks)

- [FAQs](#faqs)

- [Case Study](#case-study)

- [Papers & Talks](#papers--talks)

- [Courses](#courses)

- [Software](#software)

    + [Tools & libs](#tools--libs)

    + [License management solutions](#license-management-solutions)

- [Non-profit foundations](#non-profit-foundations)

- [License compliance](#license-compliance)

- [Patents vs OSS Licensing](#patents-vs-oss-licensing)

- [Popular questions in community](#popular-questions-in-community)

- [Licensing role in Due diligence](#licensing-role-in-due-diligence)

- [Blogs](#blogs)

- [Just for fun](#just-for-fun)

- [Credits](#credits)

- [Contributions](#contributions)

- [License](#license)



## Open Source Basics



- [Licenses & Standards](https://opensource.org/licenses)

- [Creative Commons Licenses](https://creativecommons.org/licenses/)

- [The Open Source Definition](https://opensource.org/docs/definition.php)



## To bookmarks



- [Google Open Source guide](https://opensource.google/docs/)

- [tl;drLegal](https://tldrlegal.com/)

- [choosealicense](https://choosealicense.com/appendix/)

- [knowthelicense](http://knowthelicense.codescoring.com/)



## FAQs



- [Open Source Initiative FAQ](https://opensource.org/faq)

- [GNU General Public License FAQ](http://www.gnu.org/licenses/old-licenses/gpl-2.0-faq.html)

- [Apache License FAQ](https://www.apache.org/foundation/license-faq.html)

- [Eclipse Public License FAQ](http://www.eclipse.org/legal/eplfaq.php)

- [Mozilla Public License FAQ](https://www.mozilla.org/en-US/MPL/2.0/FAQ/)



## Case Study



- [Creative Commons legal database](https://legaldb.creativecommons.org/)

- [Legal issues for the use of Free and Open Source Software in Government, 2005](http://www.mulr.com.au/issues/29_2/29_2_3.pdf)

- [Legal Issues Relating to Free and Open Source Software, 2003](https://eprints.qut.edu.au/13673/1/open_source_book.pdf)

- [A Primer on Open Source Licensing Legal Issues: Copyright, Copyleft and Copyfuture, 2001](https://scholarship.law.slu.edu/cgi/viewcontent.cgi?article=1393&context=plr)



## Papers & Talks



- [An analysis of open source software licensing questions in Stack Exchange sites](https://arxiv.org/abs/2110.00361) — Maria Papoutsoglou, Georgia M. Kapitsaki, Daniel German, Lefteris Angelis, 2021

- [Sorrel: an IDE Plugin for Managing Licenses and Detecting License Incompatibilities](https://arxiv.org/abs/2107.13315) — Dmitry Pogrebnoy, Ivan Kuznetsov, Yaroslav Golubev, Vladislav Tankov, Timofey Bryksin, 2021

- [A Study of Potential Code Borrowing and License Violations in Java Projects on GitHub](https://arxiv.org/abs/2002.05237), [talk](https://www.youtube.com/watch?v=gyjHn-qIAtY) — Yaroslav Golubev, Maria Eliseeva, Nikita Povarov, Timofey Bryksin, 2020

- [From One to Hundreds: Multi-Licensing in the JavaScript Ecosystem](https://arxiv.org/abs/2012.05016) — João Pedro Moraes, Ivanilton Polato, Igor Wiese, Filipe Saraiva, Gustavo Pinto, 2020

- [Continuous Open Source License Compliance](https://arxiv.org/abs/2011.08489) — Simon Phipps, Stefano Zacchiroli, 2020

- [Understanding the Usage, Impact, and Adoption of Non-OSI Approved Licenses](https://2018.msrconf.org/details/msr-2018-papers/2/Understanding-the-Usage-Impact-and-Adoption-of-Non-OSI-Approved-Licenses) — Rômulo Manciola Meloca , Gustavo Pinto, Leonardo Pontes Baiser , Marco Mattos , Ivanilton Polato , Igor Wiese, Daniel M. German, 2018

- [Open Source Software Opportunities and Risks](https://arxiv.org/abs/1812.11697) — John Sherlock, Manoj Muniswamaiah, Lauren Clarke, Shawn Cicoria, 2018

- [A Dual Model of Open Source License Growth](https://arxiv.org/abs/1408.5748) — Gottfried Hoffmann, Dirk Riehle, Carsten Kolassa, Wolfgang Mauerer, 2014

- [Freedom From Restriction, Freedom Of A Restriction: A Comparison Of Some Open Source Software Licenses](https://arxiv.org/abs/1402.2079) — Martin A. Coleman, 2014



## Courses



- [Open Source Software Licensing Basics for Corporate Users](https://www.youtube.com/watch?v=gF4b1TA5Q5w&list=PLAVikl6VpxPeBtplWOnfzNmiUz529AYAy) — Heather Meeker

- [OSS Licenses and Legal Issues](https://www.coursera.org/lecture/open-source-software-development-methods/oss-licenses-and-legal-issues-o0Wcd) — The Linux Foundation



## Software



### Tools & libs



- [ninka](https://github.com/dmgerman/ninka) - a license identification tool for Source Code

- [scancode-toolkit](https://github.com/nexB/scancode-toolkit) - ScanCode detects licenses, copyrights, package manifests & dependencies and more by scanning code

- [go-license-detector](https://github.com/go-enry/go-license-detector) - Reliable project licenses detector

- [OSS Review Toolkit](https://github.com/oss-review-toolkit/ort) - A suite of tools to assist with reviewing Open Source Software dependencies

- [liccheck](https://github.com/dhatim/python-license-check) - Check python packages from requirement.txt and report issues

- [pylic](https://github.com/ubersan/pylic) - Python license checker, reads pylic configuration in pyproject.toml and checks licenses of installed packages recursively.

- [pip-licenses](https://github.com/raimon49/pip-licenses) - Dump the software license list of Python packages installed with pip.

- [License Finder](https://github.com/pivotal/LicenseFinder) - LicenseFinder works with your package managers to find dependencies, detect the licenses of the packages in them, compare those licenses against a user-defined list of permitted licenses, and give you an actionable exception report.

- [LicenseCheck](https://github.com/FHPythonUtils/LicenseCheck) - Output the licences used by dependencies and check if these are compatible with the project license.

- [pip-license-checker](https://github.com/pilosus/pip-license-checker) - License compliance tool. Detect license names and types for Python PyPI packages. Identify license types for given license names obtained by third-party tools. Great coverage of free/libre and open source licenses of all types: public domain, permissive, copyleft.

- [action-pip-license-checker](https://github.com/pilosus/action-pip-license-checker) - GitHub Action for license compliance: Python, JavaScript, iOS, Android and more.

- [python-third-party-license-file-generator](https://github.com/ftpsolutions/python-third-party-license-file-generator) - A tool that walks your Python project's requirements and gathers the third party licenses for you.

- [NPM License Checker](https://github.com/davglass/license-checker) - Check NPM package licenses

- [Apache2 License Checker](https://github.com/bbc/apache2-license-checker) - Automated license checker for validating project dependencies for compatible Apache2 licenses.



### License management solutions



- [free] [Plugin for checking license compatibility in IntelliJ IDEA](https://github.com/JetBrains-Research/sorrel)

- [free] [FOSSology is a open source license compliance software system and toolkit](https://www.fossology.org/)

- [free] [Open Source Tools supported by SPDX](https://spdx.dev/tools-community/)

- [paid] [CodeScoring](https://codescoring.com)

- [paid] [WhiteSource](https://whitesourcesoftware.com)

- [paid] [Snyk](https://snyk.io/)

- [paid] [Sonatype Nexus Lifecycle](https://www.sonatype.com/products/open-source-security-dependency-management)

- [paid] [FOSSA](https://fossa.com/)

- [paid] [Licensebat](https://licensebat.com/)

- [paid] [Black Duck](https://www.synopsys.com/software-integrity/security-testing/software-composition-analysis.html)

- [paid] [nexB](https://www.nexb.com/)

- [paid] [ShiftLeft](https://www.shiftleft.io/)

- [paid] [Debricked](https://debricked.com/) 

- [paid] [Quodana](https://www.jetbrains.com/qodana/)



## Non-profit foundations



- [Apache Software Foundation (ASF)](https://www.apache.org/)

- [Open Source Initiative (OSI)](https://opensource.org/)

- [Free Software Foundation (FSF)](https://www.fsf.org/)

- [The Eclipse Foundation](https://www.eclipse.org/org/)

- [The Gnome Foundation](https://foundation.gnome.org/)

- [The Mozilla Foundation](https://www.mozilla.org/en-US/MPL/)

- [The Python Foundation](https://www.python.org/psf/)

- [The Linux Foundation](https://www.linuxfoundation.org/)

- [Creative Commons](https://creativecommons.org/)

- [Fintech Open Source Foundation](https://www.finos.org/)

- [Blue Oak Council](https://blueoakcouncil.org/)

- [Software Freedom Conservancy](https://sfconservancy.org/)



## License compliance



 - [GNU license compliance with Others](https://www.gnu.org/licenses/license-list.html)

 - [GNU about License Compatibility and Relicensing](https://www.gnu.org/licenses/license-compatibility.html)

 - [ASF about license compliance](https://www.apache.org/legal/resolved.html)

 - [Creative Commons about license compliance](https://creativecommons.org/faq/#general-license-compliance)

 - [OSI: Resources for Open Source Compliance](https://opensource.org/node/539)

 - [Linux Foundation: Open Source Compliance in the Enterprise](https://www.linuxfoundation.org/tools/open-source-compliance-in-the-enterprise/)

 - [Open Source License Compliance Handbook](https://www.finos.org/open-source-license-compliance-handbook-download-page)

 - [Google about license compliance](https://opensource.google/docs/thirdparty/licenses/)



## Patents vs OSS Licensing



- [Google OpenCaseBook](https://google.github.io/opencasebook/patents/)



## Popular questions in community



- [Top 10 GPL License Questions Answered](https://www.whitesourcesoftware.com/resources/blog/top-10-gpl-license-questions-answered/)

- [Top 10 Apache License Questions Answered](https://www.whitesourcesoftware.com/resources/blog/top-10-apache-license-questions-answered/)

- [Open source code with no license... can I fork it?](https://softwareengineering.stackexchange.com/questions/148146/open-source-code-with-no-license-can-i-fork-it)

- [Static linking vs dynamic linking](https://stackoverflow.com/questions/1993390/static-linking-vs-dynamic-linking)

- [Is an import in python considered to be dynamic linking?](https://stackoverflow.com/questions/40492518/is-an-import-in-python-considered-to-be-dynamic-linking)

- [Using Python module on LGPL license in commercial product](https://stackoverflow.com/questions/8580223/using-python-module-on-lgpl-license-in-commercial-product)

- [Bruce Perens: Combining GPL and Proprietary Software](https://www.datamation.com/open-source/bruce-perens-combining-gpl-and-proprietary-software/)



## Licensing role in Due diligence



- [Role of Software Composition Analysis in M&A Due Diligence](https://debricked.com/blog/sca-role-in-m-and-a-due-diligence/)

- [License Compliance and Software Security for M&A Due Diligence](https://www.synopsys.com/software-integrity/solutions/mergers-and-acquisitions.html)



## Blogs



- [Heather J. Meeker](https://heathermeeker.com/)

- [Pamela Chestek](https://propertyintangible.com/author/pam/)

- [Kyle Mitchell](https://writing.kemitchell.com/)

- [Kate Downing](https://katedowninglaw.com/blog/)

- [Jilayne Lovejoy](https://twitter.com/jilaynelovejoy)



## Just for fun



[Richard Stallman Free software Song](https://www.youtube.com/watch?v=9sJUDx7iEJw)



## Credits



Сarefully сrafted by [profiscope.io](https://profiscope.io) team.



## Contributions



Simply create a pull request.



## License



[![License: CC BY-SA 4.0](https://mirrors.creativecommons.org/presskit/buttons/80x15/svg/by-sa.svg)](https://creativecommons.org/licenses/by-sa/4.0/)