Safe free Keylogger for work?

Anyone know a trustworthy (free if possible) Keylogger that would be suitable for a workplace?

My biggest concern is I do not want the information that is logged to be remote accessible (even by the user) as we work in an IT environment, so I do not want the information of our customers to be vulnerable.
If anyone knows of a good Keylogger that only saves the information locally (on the PC itself) please let me know!
Thanks 🙂