Say you were hired to create education software that will be sold to students of a particular academic institution. You are the only developer working on this project and have written all of the code. An open source alternative to the project has the potential of benefiting underprivileged students from around the world. In short, a free alternative would contribute to the greater good of humanity. Would it be "OK" to create an open source alternative to the software that you are being paid to develop?

P.S. The software will only be used by the students of the institution. There are no plans to distribute it commercially. The application does not make use of other people's intellectual property.

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    Elephant in the room: Creating and distributing a free competing version of the product that your current (or recent) employer is paying you to create would almost certainly be shooting your future job prospects in the foot. Prospective future employers will see that you've done this in the past, and will be (rightly) concerned that you might do it to them as well, if they hired you. Oct 27, 2011 at 21:23
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    why not suggest this to them? that they release it as freeware with their name all over it. Positive publicity and public goodwill have value, after all.
    – Drew
    Oct 28, 2011 at 8:54
  • While I applaud your progressiveness, unfortunately doing so is likely to draw a lawsuit from your former employer. (Keep in mind an angry business owner can file a lawsuit whether or not the case has any merit. The defendant is going to suffer lots of stress and costs, even if the defendant eventually wons.) In other words, if you see signs that the business owner will get angry because of that, you have to consider more than legality and ethics when you work out your vision.
    – rwong
    Apr 6, 2015 at 2:56

4 Answers 4



Many times over yes. In the same way it's ethical for you to take the skills you learn at the current employer and use them at your next job, it's ethical to use your skills in your free time, however you want to


Maybe. While it's not up to the company to control what you do with your free time, it's standard for the company to have NDA and non competition agreements as part of your contract. You also will likely not be allowed to use any kind of proprietary information and patents etc... developed and owned by your current company in your work, as well as, very obviously, you'd have to start from scratch when writing the code. It's neither ethical, nor legal, to steal from your current employer.


  • I am not a lawyer. Ask a lawyer for advice regarding your contract.
  • I assume you're a regular employee. A shareholder or co-owner of the company has other obligations
  • This may not be obvious, but working on the OSS alternative while working for your current employer is a bad idea. I assume you're talking of developing it after the end of your employment
  • How you do it is just as important as what you end up doing. The professional way to do this is to do it openly - to let your current employer know what you're doing.
  • Consult a lawyer, especially regarding the nitpicky details of NDA and non compete agreements. The enforceability, legality, applicability and various consequences of breaking NDA, non-compete and other agreements is extremely context specific; it varies between states, countries, industries, etc... Also be aware of the potential cost of litigation - there are many corner cases where you can be forced to pony up legal fees just to prove your point, costs which might be debilitating even if you've done nothing wrong
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    +1 For the legality part, it's quite common to have non compete clause in contract.
    – HoLyVieR
    Aug 28, 2011 at 0:04
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    If you did this AFTER LEAVING and any no-compete has expired, I think it would be borderline. If you did this while still employed it would not be ethically or morally right. Aug 28, 2011 at 9:32
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    Why not ask your employer for permission? Maybe a licensing model for the original software is possible that would yield your intended benefit without hurting sales?
    – tdammers
    Aug 28, 2011 at 11:54
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    @quickly_now It's heavily in your employers' interests to convince you that is true. The truth of the matter is, as long as you are not stealing from your employer, there are no ethical or moral obligations to keep you from working on any other projects. It's actually quite the opposite; in some jurisdictions it's even entirely illegal for the employer to include clauses in their contract preventing you from competing, and in many others the clauses, while legal, are not enforceable (again, IANAL, check with a lawyer before making a local legal call) Aug 29, 2011 at 0:29
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    @Blueberryfields: In Australia, what is proposed would almost certainly be illegal. Employment restraints are commonly used here too :) Aug 29, 2011 at 10:03

In your situation, I'd take your question to the people who hired you, and see what their views on the matter are first. The big question of ethics is that of conflicts of interest, when you have two different interests or requirements pulling you in two different directions. One of them is your obligation to the client here, and if the client doesn't mind you building an open-source project on this idea, then their interests are not in conflict with yours.


Ethical? Maybe, ethics are a personal decision. Legal? Possibly, depending on your contract with the company. Smart? Heck no, when future employers see you as their competitor, your resume will go in the trash can.

  1. If you take up actual code and some critical design which is already developed in your paid project - copying that and giving in Open Source - that is Un-ethical and Illegal.

  2. Even if your code is fresh - if yo are taking away any Intellectual property it is Un-ethical and illegal.

  3. If you use time or other resources of the company for what you are paid to use that towards open source project instead of contributing to your real project - that is Un-ethical (and might become illegal if you are caught).

The balance seems to be governed by natural laws of competition in the society.


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