This is similar to zlib, but meant for written documents as opposed to software. Can i relicense software under the modified zlib licence. If youre scared of having your software put into a. You want to hold a tangible legal document as evidence that you have the legal right to use and distribute sqlite. This list contains a total of 7 apps similar to zlibrary. For your repository to truly be open source, youll need to license it so that others are free to use, change, and distribute the software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
You should have received a copy of the gnu lesser general public license along with this library. Sign up a massively spiffy yet delicately unobtrusive compression library. A software licence or software license in united states english is a kind of licence that is used to set rules about how a piece of software can or cannot be used. If there is a libpng license version 2 it seems there is, i mean the classic one. Consider the zlib license which does not even require attribution and only requires to keep the license text in the source code only. The mit license is a permissive free software license originating at the massachusetts institute of technology mit in the late 1980s. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files the software, to deal in the software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, andor sell copies of the software, and to permit. I can include mit licensed code in a gpllicensed product, but can i include gpllicensed code in a mit licensed product. Some top open source licenses in this category are the apache and mit licenses.
This is why ryan uses the zlib license for all of his software. If youre looking for a reference table of every license on. Gnu general public license, version 2 spot the differences due to the helpful visualizations at a glance category. Topic why you should not use the mit license legal. Apache software license 5 apple public source license 1 artistic license 3. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions. You are using sqlite in a jurisdiction that does not recognize the right of an author to dedicate their work to the public domain. In no event will the authors be held liable for any.
If you combine the two, part a is still licensed mit, part b is ccby and anything you added is licensed whatever you like. Copyleft licenses like gpl are, generally speaking, bad for business. The zlib license is an open source software license. Software licensing gpl agpl bsd mit apache eula duration. However, the other open source product is licensed under mspl but i dont understand if that license is fully compatible with commercial software. The unlicense is a template for disclaiming monopoly interest in software youve written. The zlib data format is itself portable across platforms. The old, imported documentation is licensed under the freebsd documentation license. This is a free software license, and compatible with the gpl. It is more precisely named the expat license, to disambiguate it from similar licenses. Modern foss licenses all rely on two things as the underlying mechanism for both controlling and encouraging the distribution of free software.
Im also confused about worries of misuse of permissively licensed software. See the gnu lesser general public license for more details. This is a free software license, compatible with the gpl via an explicit duallicensing clause. Download any of the license language or information and view a. Microsoft public license 1 mit license 24 mozilla public license 1. Im looking at using a few open source products in a commercial software application im working on. The origin of this software must not be misrepresented. The following open source software is distributed and is provided under other licenses andor has. The zliblibpng license zlib open source initiative. The license of the lgpl software requires either the disclosure of code prohibited by the nda or the ability to swaprecompile the resulting. The following licenses are sorted by the number of conditions, from most gnu agplv3 to none unlicense. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. The isc license is a permissive free software license written by the internet systems consortium isc.
After getting the software by either downloading it or buying it, you need to agree with the licence in order to use it. Filter by license to discover only free or open source alternatives. Are there any software licenses that are similar to mit but do not. If you want people to happily bundle your software with their software, choose the mit license. Bsd 3clause license zlib libpng license mit license v2. The zlib license is a permissive free software license which defines the terms under which the zlib and libpng software libraries can be distributed. The main argument for mit or any other permissive license over gpl is that more people may end up using your software.
Some people call this license the mit license, but that term is misleading, since mit has used many licenses for software. Can you use software under mit licence for commercial use. Tldrlegal provides generally good summaries of licenses. Top 4 download periodically updates software information of zlib full versions from the publishers, but some information may be slightly outofdate using warez version, crack, warez passwords, patches, serial numbers, registration codes, key generator, pirate key, keymaker or keygen for zlib license key is illegal. Comparison of free and opensource software licenses wikipedia. See also a list of authors who unlicense the software they write as a matter of course.
Zlibmitlgplgpl collision detection library license realtime. Software licence simple english wikipedia, the free. Public repositories on github are often used to share open source software. One of them is licensed under mit, which i understand as allowing commercial software linking. Or may i simply edit the mit license and include it in my software as modified from the mit license. Sep 22, 2016 i meant that if you are distributing your source code for reasons other than any requirement from zlib or mit licenses, then its not too much of an additional burden to include the zlib license attribution, because youd already be including the files that i had licensed under zlib, and each of those files has a little header saying its. This is a very liberal license which permits almost anything. If youre looking for a reference table of every license on, see the appendix. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission. Best not to create any newer licenses until extremely necessary. Are there any software licenses that are similar to mit but. It requires you to change the name of modified software and contains a sentence removing liability from the authors of the software. They require all modifications, and any software based on the open source.
Another difference between the bsd licenses and the mit license is how they deal with the meaning of software. Various licenses and comments about them gnu project free. You can charge someone for the software, but remember to. The compression method currently used in zlib essentially never expands the data. The zlib license is an open source software license the license. Say you have taken part a from something with mit license and part b from something with ccby. Check the source distribution for the exact license text for each version before lua 5. Qt contains some code that is not provided under the gnu lesser general public license. This is a comparison of free and opensource software licenses. The user is granted the right, without any fee or cost, to use, copy, modify, alter, enhance and distribute this software, and any derivative works thereof, and its supporting documentation for any purpose whatsoever, provided that this entire notice appears in all copies of the software, derivative works and supporting documentation. Mit license expat explained in plain english tldrlegal.
The x11 license and the modified bsd license are more or less equivalent. Love the software is licensed under the terms of the zlib license. The zlib license is a permissive free software license which defines the terms under which the zlib software library can be distributed. The implementation is not derived from licensed software. Unlike the lzw compression method used in unix compress1 and in the gif image format, the compression method currently used in. The comparison only covers software licenses with a linked article for details, approved by at least one expert group at the fsf, the osi, the debian project or the fedora project. This license is used for the zlib library and some other opensource librariespackages. Why do people pick the mit license over bsd, if bsds non endorsement clause is a good idea. The free software foundation states that both public domain works and the lax license provided by the unlicense are compatible with the gnu gpl. Why do people pick the mit license over bsd, if bsds non. Zlibrary alternatives and similar websites and apps. If you want your software to be bundled separately and never as closely integrated with whatever package is using it, use the lgpl. Gnu project the gnu operating system and the free software.
Unicode license agreement data files and software 2016 forkfd. Comparison of free and opensource software licenses software using the zlib license category. Some examples of wellknown public domain or license free software libraries and applications. Get details on all third party licensing used on some of quest software s products.
As a permissive license, it puts only very limited restriction on reuse and has, therefore, high license compatibility. Even if all of the downstream userdevelopers dont opensource their contributions, many of them will. Are permissive licenses mitbsdzlib compatible with ccby. Nov 18, 2015 the mit license is an agreement commonly used by software developers when they release free and open source software. The libpng library uses a similar license sometimes referred interchangeably as the zlib libpng license. In no event will the authors be held liable for any damages arising from the use of this software.
In mit license, the word software with a capital s is explicitly defined as being this software and associated documentation files. It is also used by many other free software packages. What are the essential differences between the bsd and mit. Isc mit mpl msplrl python python software foundation license sleepycat unlicense wtfpl. It seems to me that the chief difference between the mit license and gpl is that the mit doesnt require modifications be open sourced whereas the. Borg borgbackup or borg for short is a deduplicating backup program that also supports compression and au. The software in question is protected by held by the original and subsequent authors. It combines a waiver patterned after the very successful public domain sqlite project with the nowarranty statement from the widelyused mit x11 license. If you dont think zlib s license is permissive enough though, i would definitely suggest the isc license as an alternative to the mit license. Some people call this license the mit license, but that term is misleading, since. Mit applies to the documentation associated with the software, bsd dont. Here are the top open source licenses and their risk categories. The zlib license is a permissive free software license which defines the terms under which the. Your legal department tells you that you have to purchase a license.
If you dont think zlibs license is permissive enough though, i would. Zliblibpng license zlib explained in plain english tldrlegal. In this respect, the zlib library sometimes compares poorly to certain newer code because zlib is not well optimized for modern processors. Difference between different types of open sources licenses. It is meant to be functionally equivalent to the simplified bsd and the mit licenses, differing in its removal of language deemed unnecessary following the global adoption of the berne convention.
However, for dedicating software to the public domain it recommends cc0 over the unlicense, stating that cc0 is more thorough and mature than the unlicense. Apache software license 3 apple public source license 1 artistic license 2 artistic license 2. Nevertheless, if you wish to use those old versions, you may hereby assume that. Various licenses and comments about them gnu project. And, of course, real applications can use it as well.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files the software, to deal in the software without restriction, including wit. When and wherever possible, however, i will always use the mit license for my code and will only use a gpl license if given no other option. This software is provided asis, without any express or implied warranty. Secondly, any code you see on this site, my github account, or receive from me in any way is, unless otherwise explicitly stated, distributed under the terms of the mit license above. Notice that the popular licenses featured on the home page gnu gplv3 and mit fall within this spectrum. It is essentially identical to the x11 license, with an optional alternative way of providing license notices. Is there a license similar to mit that also requires changes to be. The zlib license has been approved by the free software foundation fsf as a free software licence, 2 and by the open source initiative osi. Alternatives to zlibrary for web, software as a service saas, windows, mac, linux and more. The sharpziplib project is looking for a new maintainer please read state of the union august 2017. Using a zlib like icensed library which has dependencies on.
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