Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
FreelanceStation - Time tracking and Invoicing for Mac. Built for freelancers.
Clockify - Simple and free time tracker. Perfect for small and mid-sized businesses as well as freelancers. Unlimited projects and users, unlimited productivity. Get all the premium functionalities, completely free.
Clockk - Clockk AI-powered time tracking for freelancers & agencies ⏰🔥💰
Cattr - Cattr is a free open-source self-hosted time tracker with desktop clients for windows, mac, linux.
Pendium - A time & finance tracking tool for collaborating freelancers