https://choosealicense.com/
Choose an open source license | Choose a License
Non-judgmental guidance on choosing a license for your open source project
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https://opensource.org/license/ncsa
The University of Illinois/NCSA Open Source License - Open Source Initiative
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https://www.aikido.dev/code/open-source-license-risk
Open Source License Scanner & Compliance | Aikido Security
Automate open-source license compliance. Detect risks like dual licensing, restrictive terms, and bad reputations so you can ship without legal surprises.
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https://www.linuxfoundation.org/research/open-source-license-compliance?hsLang=en
Open Source License Compliance
Open Source License Compliance
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https://www.aikido.dev/blog/open-source-license-risk
Understanding Open-Source License Risk in Modern Software
Jan 29, 2026 - Open-source license risk hides in dependencies and container images. Learn what it is, why it matters, and how to catch issues early.
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https://www.dreamhost.com/legal/open-source-license-disclosure/
Open Source License Disclosure
For complaints regarding abuse of our hosting services or your DreamHost account.
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https://tlo.mit.edu/understand-ip/exploring-mit-open-source-license-comprehensive-guide
Exploring the MIT Open Source License: A Comprehensive Guide | MIT Technology Licensing Office
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https://opensource.org/license/jabberpl
Jabber Open Source License - Open Source Initiative
Mar 4, 2026 - (Jabber has ceased to use or recommend this license) This Jabber Open Source License (the “License”) applies to Jabber Server and related software products as...
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https://www.osadl.org/Open-Source-License-Compliance-Tool-Supp.oss-legal-compliance-tools.0.html
Open Source License Compliance Tool Support: OSADL - Open Source Automation Development Lab eG
OSADL promotes and supports the use of Open Source software in the automation and machine industry.
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https://opensource.org/license/motosoto
Motosoto Open Source License - Open Source Initiative
Jul 9, 2023 - MOTOSOTO OPEN SOURCE LICENSE Version 0.9 This Motosoto Open Source License (the “License”) applies to “Community Portal Server” and related software products...
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https://www.sonatype.com/solutions/legal-open-source-license-compliance
Open Source License Compliance Software | Sonatype
Automate open source license compliance with Sonatype software. Use our license compliance management tools to fix violations without slowing down development.
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https://opensource.org/license/CATOSL-1.1
Computer Associates Trusted Open Source License 1.1 - Open Source Initiative
Feb 27, 2026 - Version 1.1 PLEASE READ THIS DOCUMENT CAREFULLY AND IN ITS ENTIRETY. THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS COMPUTER ASSOCIATES TRUSTED...
open source licensecomputerassociatestrustedinitiative
https://opensource.org/license/intel
Intel Open Source License - Open Source Initiative
Jun 27, 2023 - (Intel has ceased to use or recommend this license) Copyright (c) 1996-2000 Intel Corporation All rights reserved. Redistribution and use in source and binary...
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https://opensource.org/blog/the-sspl-is-not-an-open-source-license
The SSPL is Not an Open Source License - Open Source Initiative
Jul 15, 2025 - We’ve seen that several companies have abandoned their original dedication to the open source community by switching their core products from an open source...
open source licenseinitiative
https://training.linuxfoundation.org/training/introduction-to-open-source-license-compliance-management-lfc193/
Introduction to Open Source License Compliance Management (LFC193) - Linux Foundation - Education
Jan 28, 2026 - Learn the basic concepts and approaches needed for building an open compliance program for your organization.
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https://training.linuxfoundation.org/training/implementing-open-source-license-compliance-management-lfc194/
Implementing Open Source License Compliance Management (LFC194) - Linux Foundation - Education
Jan 28, 2026 - Learn how an open source compliance management system should be structured and implemented to be most effective.
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https://opensource.org/license/nokia
Nokia Open Source License Version 1.0a - Open Source Initiative
Jun 25, 2023 - 1. DEFINITIONS. “Affiliates” of a party shall mean an entity a) which is directly or indirectly controlling such party; b) which is under the same direct or...
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https://opensource.org/license/mit
The MIT License - Open Source Initiative
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https://firstdonoharm.dev/
The Hippocratic License: An Ethical License for Open Source
The Hippocratic License (HL3) is an ethical source license that specifically prohibits the use of open source software to violate universal standards of human...
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https://opensource.org/license/mit-0
MIT No Attribution License - Open Source Initiative
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https://opensource.org/license/BSD-2-Clause
The 2-Clause BSD License - Open Source Initiative
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https://opensource.org/license/UCL-1.0
Upstream Compatibility License v1.0 - Open Source Initiative
Jun 23, 2023 - This Upstream Compatibility License (the “License”) applies to any original work of authorship (the “Original Work”) whose owner (the “Licensor”) has placed...
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https://opensource.org/license/Apache-1.1
Apache Software License, version 1.1 - Open Source Initiative
Mar 2, 2026 - (Note: This license has been superseded by the Apache License, Version 2.0) Copyright (c) 2000 The Apache Software Foundation. All rights reserved....
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https://opensource.org/license/apache-2.0
Apache License, Version 2.0 - Open Source Initiative
Mar 30, 2026 - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. “License” shall mean the terms and conditions for use, reproduction, and...
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https://opensource.org/license/GPL-3.0
GNU General Public License version 3 - Open Source Initiative
Mar 30, 2026 - Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. The licenses for most software and other practical...
general public licenseopen source initiativeversion 3gnu
https://opensource.org/license/MulanPSL-2.0
Mulan Permissive Software License v2 - Open Source Initiative
Feb 13, 2025 - 木兰宽松许可证, 第2版 2020年1月 http://license.coscl.org.cn/MulanPSL2 您对“软件”的复制、使用、修改及分发受木兰宽松许可证,第2版(“本许可证”)的如下条款的约束: 0. 定义 “软件”是指由“贡献”构成的许可在“本许可证”下的程序和相关文档的集合。...
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https://opensource.org/license/PHP-3.01
PHP License 3.01 - Open Source Initiative
Jun 23, 2023 - Redistribution and use in source and binary forms, with or without modification, is permitted provided that the following conditions are met: 1....
open source initiativephplicense
https://opensource.org/license/naumen
NAUMEN Public License - Open Source Initiative
Mar 2, 2026 - This software is Copyright (c) NAUMEN ™ and Contributors. All rights reserved. Redistribution and use in source and binary forms, with or without modification,...
open source initiativepubliclicense
https://opensource.org/license/CPL-1.0
Common Public License Version 1.0 - Open Source Initiative
Feb 27, 2026 - THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS COMMON PUBLIC LICENSE (“AGREEMENT”). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM...
open source initiativeversion 1commonpubliclicense
https://opensource.org/license/mit-cmu
CMU License - Open Source Initiative
open source initiativecmulicense
https://opensource.org/license/UPL-1.0
The Universal Permissive License Version 1.0 - Open Source Initiative
open source initiativepermissive licenseversion 1universal
https://opensource.org/license/vsl-1.0
The Vovida Software License v. 1.0 - Open Source Initiative
Apr 10, 2026 - This license applies to all software incorporated in the
open source initiativesoftware license1 0
https://opensource.org/license/multics
Multics License - Open Source Initiative
Mar 2, 2026 - Historical Background This edition of the Multics software materials and documentation is provided and donated to Massachusetts Institute of Technology by...
open source initiativemulticslicense
https://opensource.org/license/ISC
ISC License - Open Source Initiative
open source initiativeisc license
https://opensource.org/license/gpl-1.0
GNU General Public License, version 1 - Open Source Initiative
Mar 13, 2026 - Copyright (C) 1989 Free Software Foundation, Inc. 675 Mass Ave, Cambridge, MA 02139, USA Everyone is permitted to copy and distribute verbatim copies of this...
general public licenseopen source initiativeversion 1gnu
https://opensource.org/license/ECL-1.0
Educational Community License, Version 1.0 - Open Source Initiative
Jun 27, 2023 - (Note: This license has been superseded by the Educational Community License, Version 2.0) The Educational Community License This Educational Community License...
open source initiativeversion 1educationalcommunitylicense
https://opensource.org/license/xnet
The X.Net, Inc. License - Open Source Initiative
Jun 24, 2023 - This License has been voluntarily deprecated by its author. Copyright (c) 2000-2001 X.Net, Inc. Lafayette, California, USA Permission is hereby granted, free...
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https://opensource.org/license/APSL-2.0
Apple Public Source License 2.0 - Open Source Initiative
Mar 26, 2024 - Please read this License carefully before downloading this software. By downloading or using this software, you are agreeing to be bound by the terms of this...
2 0applepublicsourcelicense
https://opensource.org/license/CAL-1.0
Cryptographic Autonomy License - Open Source Initiative
Aug 7, 2023 - 1. Purpose This License gives You unlimited permission to use and modify the software to which it applies (the “Work”), either as-is or in modified form, for...
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https://opensource.org/license/OFL-1.1
SIL OPEN FONT LICENSE - Open Source Initiative
Jun 27, 2023 - PREAMBLE The goals of the Open Font License (OFL) are to stimulate worldwide development of collaborative font projects, to support the font creation efforts...
silopenfontlicensesource
https://opensource.org/license/BSD-3-Clause
The 3-Clause BSD License - Open Source Initiative
open source initiativebsd licenseclause
https://opensource.org/license/EPL-1.0
Eclipse Public License -v 1.0 - Open Source Initiative
Jun 27, 2023 - THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC LICENSE (“AGREEMENT”). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM...
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https://opensource.org/license/jam
JAM License - Open Source Initiative
Jun 27, 2023 - License is hereby granted to use this software and distribute it freely, as long as this copyright notice is retained and modifications are clearly marked. ALL...
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https://opensource.org/license/CECILL-2.1
Cea Cnrs Inria Logiciel Libre License, version 2.1 - Open Source Initiative
Jun 23, 2023 - This license is also available in French from the CeCILL website. Version 2.1 dated 2013-06-21 Notice This Agreement is a Free Software license agreement that...
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https://opensource.org/license/MPL-1.0
Mozilla Public License, version 1.0 - Open Source Initiative
Jun 27, 2023 - 1. Definitions. 1.1.
mozilla public licenseopen source initiativeversion 1
https://opensource.org/license/cnri-python
The CNRI portion of the multi-part Python License - Open Source Initiative
Jun 27, 2023 - CNRI OPEN SOURCE LICENSE AGREEMENT IMPORTANT: PLEASE READ THE FOLLOWING AGREEMENT CAREFULLY. BY CLICKING ON
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https://opensource.org/license/sissl
Sun Industry Standards Source License - Open Source Initiative
Jun 27, 2023 - Sun Industry Standards Source License (SISSL) (Sun has ceased to use or recommend this license) 1.0 DEFINITIONS 1.1
industry standardssunsourcelicenseopen
https://opensource.org/license/Apache-2.0
Apache License, Version 2.0 - Open Source Initiative
Mar 30, 2026 - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. “License” shall mean the terms and conditions for use, reproduction, and...
open source initiativeapache licenseversion 2
https://opensource.org/license/LPPL-1.3c
LaTeX Project Public License, Version 1.3c - Open Source Initiative
Mar 2, 2026 - Copyright 1999 2002-2008 LaTeX3 Project Everyone is allowed to distribute verbatim copies of this license document, but modification of it is not allowed....
open source initiativelatex projectversion 1publiclicense
https://opensource.org/license/RPL-1.5
Reciprocal Public License 1.5 - Open Source Initiative
Jun 27, 2023 - Copyright (C) 2001-2007 Technical Pursuit Inc., All Rights Reserved. PREAMBLE The Reciprocal Public License (RPL) is based on the concept of reciprocity or, if...
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https://opensource.org/license/postgresql
The PostgreSQL License - Open Source Initiative
Dec 6, 2024 - This is a template license. The body of the license starts at the end of this paragraph. To use it, say that it is The PostgreSQL License, and then...
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https://opensource.org/license/Unicode-3.0
UNICODE LICENSE V3 - Open Source Initiative
Mar 2, 2026 - UNICODE LICENSE V3 COPYRIGHT AND PERMISSION NOTICE Copyright © NOTICE TO USER: Carefully read the following legal agreement. BY DOWNLOADING, INSTALLING,...
open source initiativeunicodelicensev3
https://opensource.org/license/QPL-1.0
The Q Public License Version - Open Source Initiative
Jun 25, 2023 - Copyright (C) 1999 Trolltech AS, Norway.Everyone is permitted to copy and distribute this license document. The intent of this license is to establish freedom...
open source initiativepubliclicenseversion
https://opensource.org/license/bsd-1-clause
1-clause BSD License - Open Source Initiative
Jun 23, 2023 - Copyright (c) [Year][Name of Organization] [All rights reserved]. Redistribution and use in source and binary forms, with or without modification, are...
open source initiativebsd licenseclause
https://opensource.org/license/lgpl-2-0
GNU Library General Public License version 2 - Open Source Initiative
Mar 13, 2026 - Note: The Free Software Foundation, license steward of the LGPL, regards this license as having been superseded by LGPL version 3. GNU LIBRARY GENERAL PUBLIC...
general public licenseopen source initiativeversion 2gnulibrary
https://opensource.org/license/ECL-2.0
Educational Community License, Version 2.0 - Open Source Initiative
Jun 27, 2023 - The Educational Community License version 2.0 (“ECL”) consists of the Apache 2.0 license, modified to change the scope of the patent grant in section 3 to be...
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https://opensource.org/license/OSET-PL-2.1
OSET Public License version 2.1 - Open Source Initiative
Mar 2, 2026 - © 2015 ALL RIGHTS RESERVED VERSION 2.1 THIS LICENSE DEFINES THE RIGHTS OF USE, REPRODUCTION, DISTRIBUTION, MODIFICATION, AND REDISTRIBUTION OF CERTAIN COVERED...
open source initiativeversion 2publiclicense
https://opensource.org/license/entessa
Entessa Public License Version. 1.0 - Open Source Initiative
Jun 27, 2023 - Entessa Public License Version. 1.0 Copyright (c) 2003 Entessa, LLC. All rights reserved. Redistribution and use in source and binary forms, with or without...
open source initiativeversion 1publiclicense
https://opensource.org/license/BSL-1.0
Boost Software License 1.0 - Open Source Initiative
Jun 23, 2023 - Permission is hereby granted, free of charge, to any person or organization obtaining a copy of the software and accompanying documentation covered by this...
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https://www.virtualmin.com/docs/development/api-programs/license-info/
license-info | Virtualmin — Open Source Web Hosting Control Panel
Jan 23, 2024 - Show license counts for this Virtualmin system This command simply outputs the serial number and license key of the current Virtualmin system, and the number...
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https://opensource.org/license/ogtsl
Open Group Test Suite License - Open Source Initiative
Mar 2, 2026 - Preamble The intent of this document is to state the conditions under which a Package may be copied, such that the Copyright Holder maintains some semblance of...
test suiteopengrouplicensesource
https://opensource.org/license/Python-2.0
Python License, Version 2 - Open Source Initiative
Feb 27, 2026 - View Summary of Python License 2.0 on TLDRLegal » (Disclaimer) Python License, Version 2 (Python-2.0) PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2...
open source initiativeversion 2pythonlicense
https://opensource.org/license/OLFL-1.3
Open Logistics Foundation License v1.3 - Open Source Initiative
openlogisticsfoundationlicensev1
https://opensource.org/license/MPL-2.0
Mozilla Public License 2.0 - Open Source Initiative
Jun 27, 2023 - 1. Definitions 1.1. “Contributor” means each individual or legal entity that creates, contributes to the creation of, or owns Covered Software. 1.2....
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https://opensource.org/license/ipa
IPA Font License - Open Source Initiative
Mar 2, 2026 - The Licensor provides the Licensed Program (as defined in Article 1 below) under the terms of this license agreement (“Agreement”). Any use, reproduction or...
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https://opensource.org/license/SimPL-2.0
Simple Public License - Open Source Initiative
Mar 2, 2026 - Preamble This Simple Public License 2.0 (SimPL-2.0 for short) is a plain language implementation of GPL 2.0. The words are different, but the goal is the same...
open source initiativesimplepubliclicense
https://opensource.org/license/EUPL-1.1
The European Union Public License, version 1.1 - Open Source Initiative
Jun 23, 2023 - Please see http://joinup.ec.europa.eu/software/page/eupl for all the co-equal version of the EUPL-1.1 into various European languages. (This matrix showing the...
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https://opensource.org/license/OSC-1.0
OSC License 1.0 - Open Source Initiative
open source initiative1 0osclicense
https://opensource.org/license/fair
Fair License - Open Source Initiative
open source initiativefairlicense
https://www.virtualmin.com/docs/development/api-programs/change-license/
change-license | Virtualmin — Open Source Web Hosting Control Panel
Jan 23, 2024 - Change a system’s Virtualmin license key This program updates all files that we know contain a Virtualmin license key with a new serial and key. The two...
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https://opensource.org/license/agpl-3-0
GNU Affero General Public License version 3 - Open Source Initiative
general public licenseopen source initiativeversion 3gnu
https://opensource.org/license/LPL-1.0
Lucent Public License, Plan 9, version 1.0 - Open Source Initiative
Jun 27, 2023 - (NOTE: This license has been superseded by the Lucent Public License Version 1.02) The following is a Lucent license template. To generate your own. change the...
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https://opensource.org/license/OSL-1.0
Open Software License, version 1.0 - Open Source Initiative
Jun 27, 2023 - The Open Software License v. 1.0 This Open Software License (the
software licenseversion 1opensourceinitiative
https://opensource.org/license/CDDL-1.0
Common Development and Distribution License 1.0 - Open Source Initiative
Jun 27, 2023 - 1. Definitions. 1.1. Contributor means each individual or entity that creates or contributes to the creation of Modifications. 1.2. Contributor Version means...
open source initiative1 0commondevelopmentdistribution
https://opensource.org/license/ms-pl
Microsoft Public License - Open Source Initiative
Mar 2, 2026 - was: Microsoft permissive license, submitted on Aug 10, 2007
open source initiativemicrosoftpubliclicense
https://opensource.org/license/agpl-3.0
GNU Affero General Public License version 3 - Open Source Initiative
general public licenseopen source initiativeversion 3gnu
https://opensource.org/license/BlueOak-1.0.0
Blue Oak Model License - Open Source Initiative
Feb 27, 2026 - Version 1.0.0 Purpose This license gives everyone as much permission to work with this software as possible, while protecting contributors from liability....
open source initiativeblueoakmodellicense
https://opensource.org/license/w3c-20150513
The W3C® Software and Document license - Open Source Initiative
Mar 2, 2026 - This work is being provided by the copyright holders under the following license. License By obtaining and/or copying this work, you (the licensee) agree that...
open source initiativesoftwaredocumentlicense
https://opensource.org/license/gpl-3.0
GNU General Public License version 3 - Open Source Initiative
Mar 30, 2026 - Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. The licenses for most software and other practical...
general public licenseopen source initiativeversion 3gnu
https://opensource.org/license/MPL-1.1
Mozilla Public License 1.1 - Open Source Initiative
Jun 27, 2023 - This license has been superseded by the Mozilla Public License 2.0; please use the MPL 2.0 instead of 1.1 1. Definitions. 1.0.1.
mozilla public licenseopen source initiative
https://opensource.org/license/MIT
The MIT License - Open Source Initiative
the mit licenseopen source initiative
https://opensource.org/licenses/review-process
The License Review process - Open Source Initiative
Mar 13, 2024 - All licenses must go through a public review process described below. The OSI Board is happy to consult with entities in advance to help them navigate the...
license review processopen source initiative
https://opensource.org/license/aal
Attribution Assurance License - Open Source Initiative
Feb 27, 2026 - Copyright (c) 2002 by AUTHOR PROFESSIONAL IDENTIFICATION * URL “PROMOTIONAL SLOGAN FOR AUTHOR’S PROFESSIONAL PRACTICE” All Rights Reserved ATTRIBUTION...
attribution assurance licenseopen source initiative
https://opensource.org/license/OCLC-2.0
The OCLC Research Public License 2.0 License - Open Source Initiative
open source initiative2 0oclcresearchpublic
https://arstechnica.com/ai/2026/03/ai-can-rewrite-open-source-code-but-can-it-rewrite-the-license-too/
AI can rewrite open source code—but can it rewrite the license, too? - Ars Technica
open sourcears technicaairewritelicense