LicenseCrawler is an easy to use free key finder program. Although it is simple, I find it very impressive with the variety of serial numbers and product keys it finds.

If you are preparing to reinstall an important application but can’t find the product key or serial number, LicenseCrawler can probably help. It found the serial number of almost every important program I tested.

Here are some more details about LicenseCrawler, including which major operating systems and software programs it finds product keys and serial numbers for:

Finds keys for operating systems: Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows Server 2003 and Windows 2000