AtTrack - First modular time tracker to improve team's productivity
Web Activity Time Tracker - Track your activity in the browser
Futuramo Time Tracker - Futuramo Time Tracker is a time tracking solutions designed for freelancers and teams.
ManicTime - Track your computer usage and use collected data to accurately tag time.
SaveMyTime - Get rid of wasted time to make space for New Year’s Goals
ActivityWatch - Log what you do on your computer. Simple (yet powerful), extensible, no third parties.