Can I use MIT licence plugins in my commercial web site?

  • If yes, what precautions should I take?

    could u name those plugins? If u are using the plugins without license, for commercial use, that would be a lawsuit problem

    I dont see it as a commercial plugin. here is the link 'http://jqueryui.com/about'. they see it is available under GPL, so i guess you can use it

  • haylem

    haylem Correct answer

    9 years ago

    With an MIT/X11-licensed product:

    • you CAN:
      • re-use the code freely for your own use,
      • re-use the code freely for non-commercial AND commercial re-distribution, whether in source or binary form.
    • you CANNOT:
      • claim authorship of the software,
      • thus you cannot attack the original author for using or publishing his original version.

    So, yes, you CAN use MIT/X11-licensed plug-ins in your commercial application.

    MIT/X11 is basically a simple contract that says:

    • Person or company X created Y.
    • Y belongs to X, but X is granting you the right to use it and do whatever you want with it.
    • X cannot be held accountable for anything that goes downhill with what you do with Y.

    If a part of my software uses the source code under MIT license and another part is written by me, how do I have to state that in my app? In each file or in the license "some of the files are taken from NNN (the original author) and changed by me"?

    @Alex: again, IANAL, but I think the right way is to provide a file containing license information stating for which parts of your product it is used. But I'd also indeed had a comment where you use the code and give a reference to the author and source site, both for the the copyright claim but also to facilitate traceability if you need to look at that code later down the line.

    @haylem Hi. Can you expand on the *you cannot claim authorship of the software*. How this relate to the entire product? So if I release a closed source product, that includes a MIT licensed piece of code, this product has two authors?

    @this: Copyright and authorship are inalienable, and are not the same as a license. A license (like MIT) lays the terms for the use and distribution by a 3rd party. Copyright is implicit and inalienable. Though the MIT/X11 license gives you the right to reuse (in full or partly, modified or unaltered) a piece of sofware licensed that way, and to redistribute it (in both commercial or non-commercial forms, closed-source or open-source), you are not allowed to claim that that *specific* piece of code is yours. That being said, MIT is vague about *giving attribution*.

    @this: The usual (both *correct* and *decent*) thing to do is to include, as part of your software, the terms of this license carrying the original author's name and copyright notice, and a note as to what it refers to. Depending on your software's form, this can be either in a LICENSE file, a "About..." dialog, or an information page, as long as it's bundled and visible with your software. (again, IANAL).

    @haylem Thank you. In the meantime I have already opened a question about this. If you want you can post an answer there (No obligations to do so of course). http://programmers.stackexchange.com/q/303288/120714

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Content dated before 6/26/2020 9:53 AM