ActivityWatch
Automatically track how you spend time on your devices.
solidtime
Modern time tracking application for freelancers and agencies.
Kimai
Track work time and print out a summary of your activities on demand.
Wakapi
Tracking tool for coding statistics, compatible with WakaTime.
Ever Gauzy
Open business management platform for collaborative, on-demand and sharing economies (ERP/CRM/HRM/ATS/PM).
Beaver Habit Tracker
Habit tracking app to save your precious moments in your fleeting life.
TimeTagger
An open source time-tracker based on an interactive timeline and powerful reporting.
Traggo
Traggo is a tag-based time tracking tool.
OpenHabitTracker
Track habits, tasks and notes with time tracking, calendar view and completion statistics.
Ziit
The Swiss army knife of code time tracking (alternative to WakaTime).
Focus Flow
Complete ecosystem for time management using the Pomodoro technique.