Tockler is a free, open-source desktop application that automatically tracks your computer usage and working time. It quietly monitors the active window title and idle time on your machine, then turns that into a rich, searchable timeline of how you spent your day — which apps you used, on what, and for how long. Built with Electron, Tockler runs entirely on your own device, so none of your activity data leaves your computer.

Key Features

• Automatic time tracking — Records active window titles and app usage with no manual timers needed.
• Application monitoring — Track which applications you used and their window titles.
• Interactive timeline — Visualise your computer usage with an interactive, zoomable chart.
• Usage analytics — View total online time, application usage patterns, and trends over time.
• Search & export — Search through tracked items and export your time data.
• Fully local & private — All data stays on your device; no account or cloud service required.

Why Use Tockler?

Tockler is a great fit for anyone who wants honest, automatic insight into where their time goes on a computer without handing that data to a third-party service. Because it is fully open source and stores everything locally, it appeals to privacy-conscious users and is useful for freelancers, students and teams that want better self-awareness about their digital habits. It pairs well with a manual, project-oriented tracker like Kimai when you need accurate billable time rather than just an activity log.

Use Cases

• Getting a clear picture of how much time you spend in each application
• Freelancers reviewing their day to reconstruct rough billable time
• Privacy-focused users who want automatic tracking without cloud storage

Platform

Windows · macOS · Linux (desktop, Electron)

Licence

GNU General Public License v2.0 (GPL-2.0) — fully free and open source.

Website

tockler.trimatech.dev · github.com/MayGo/tockler