I like Krunner, but nowadays I prefer to use XFCE instead of KDE. Is there any XFCE app that is equivalent or similar to Krunner?
gmrun, may be? https://wiki.archlinux.org/index.php/Gmrun
Very old post, but anyway:
Whisker Menu - the now default Xfce menu launcher, can find only applications (that is
.desktopfiles created in
~/.local/share/applications), but not files & folders, like krunner can.
Synapse - not Xfce-specific, but probably the best launcher anyway, at least for a gtk environment, meets up the
krunnerstandards. To start it with just the Super key, follow this answer.