KEY file extension

Security Key

Run a free instant scan for .KEY file errors

A .KEY file is known as a Security Key.

This file extension was added to our database by a visitor to this site, but no further information was provided. We have yet to investigate the KEY file extension any further, or there was simply not enough information available at the time to report accurately on this format.

However, it is possible that other file formats exist that use the KEY extension, so please let us know if you do not think this extension matches the file format you are looking for.