CHKN is temporary file used by jest IMVU software, available for Mac and Windows systems. CHKN files store data and resources necessary for IMVU to function properly. CHKN files are automatically deleted after IMVU avatar creation process is complete.

Some disk cleaning applications may designate CHKN files as dispensable. Deleting CHKN files should be relatively safe and have no impact on IMVU stability, yet caution is advised.