کیجن

Also known as key generator, keymaker

A key generator, commonly abbreviated as keygen, is a computer program that generates a product key and/or serial number necessary for product activation of an application software. Keygens may be legitimately distributed by software manufacturers for licensing software in commercial environments where software has been licensed in bulk for an entire site or enterprise, or they may be developed and distributed illegitimately in circumstances of copyright infringement or software piracy.