Anuko is a popular open source time tracking software that analyzes work hours for productivity and profitability, offering plugins for charts, attachments, and record locking.

A lightweight web app that boosts productivity using the Pomodoro technique, incorporating time-tracking features.

A universal, single-page application for time tracking, offering features for effective time management and analysis.

Kimai is a free, open-source time tracking software supporting unlimited users and timesheet entries. It offers a responsive design, plugin support, and multi-language capabilities, making it highly suitable for teams and individuals needing flexible, extensible time tracking.

tasktime is a sample web app for task and time tracking, built with Svelte, Firebase, and Bulma for UI and authentication.

Miru is an open-source time tracking and invoicing web application built with Ruby on Rails and ReactJS, supporting employee benefit management as well.