Open Source DeskTime Alternatives

ActivityWatch is an app that automatically tracks how you spend time on your devices.

Hourglass is the most advanced simple countdown timer for Windows. Just enter a time in just about any format, and hit Enter.

Kimai is a free open source timetracker. It tracks work time and prints out a summary of your activities on demand. Yearly, monthly, daily, by customer, by project, by action …

Project Hamster is time tracking for individuals. It helps you to keep track on how much time you have spent during the day on activities you choose to track.

ProcrastriTracker is a time tracking tool that automatically tracks what applications and documents you use, and allows you to view statistics on your usage in great detail. It is written to be small and non-intrusive.

Cattr is a free open-source self-hosted time tracker with desktop clients for windows, mac, linux. The key features are built-in screenshot capture, activity detection. Integrations with jira, redmine, trello, gitlab, other task managers via plugins.

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Baralga keeps track of the time you spent working on different projects. You can record the time spent on a project or you can manually enter and edit activities. This way you can easily memorize when and how long you have been working on each single project.

ARBTT, the Automatic Rule-Base Time Tracker, is a window logger that runs in background and logs for all opened windows:

Cross-platform automated time tracker.