klog is a simple, open-source time-tracking tool that uses plain-text files for logging hours. It’s lightweight, privacy-respecting, and integrates smoothly with command-line tools, making it ideal for users who want a customizable time tracking experience.

minute is an open-source time tracking app designed for individuals to monitor and track their time efficiently.

A simple command line tool for tracking project timer records, suitable for lightweight and scriptable time tracking needs.

Baralga is an open source desktop time tracking app that provides real-time tracking, manual editing, and exportable reports for productive work management.

A GTK application for timing activities across various projects and tasks, with support for plain text and HTML reporting.

KTimeTracker is a todo management and time tracking application, integrated with the KDE desktop, ideal for tracking time spent on multiple tasks.