Can you modify GPL software?

Can you modify GPL software?

The GPL does not require you to release your modified version, or any part of it. You are free to make modifications and use them privately, without ever releasing them.

Can you charge GPL software?

You can charge a fee for software covered by the GNU GPL. It’s totally fine. The GNU project encourages you to charge what you can. GNU’s “Free Software” philosophy is “about freedom, not price”. If you provide binaries to a customer, you also must provide source (or access to source).

Is it legal to sell GPL software?

Can you sell GPL software/code? Yes, the GPL license allows users to sell the original as well as the modified software. However, if someone buys your program for a fee, GPL gives him/her the liberty to release it to the public, with or without a fee.

Can a GPL program run on anyone else’s computer?

That code runs on your computer, nobody else’s. Since the GPL code doesn’t execute on anyone else’s machine, they cannot demand to see the source for the running program, even if it was modified.

How are GPL libraries used in software development?

Internally, our software will be using some GPL libraries to generate its output. However, the software itself will not be distributed. Users will either receive a virtual machine with the pipeline set up which they can run locally, or submit their input data to us and access their results from a web interface.

Is it possible to mix GPL with other GPL?

According to experts in open source licenses this is possible, especially with the wording in the latest GPLv3 draft. First, the easy cases. Both versions of GPL have a clause that allows “aggregations” of GPL covered software with non-GPL software.

Can a company run a modified version of a GPL ed program?

A company is running a modified version of a GPL’ed program on a web site. Does the GPL say they must release their modified sources? (#UnreleasedMods) The GPL permits anyone to make a modified version and use it without ever distributing it to others. What this company is doing is a special case of that.