TIMEtagger
Open-source time tracking with interactive timeline and tag-based workflow
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GPL-3.0 v26.1.3 Apr 13, 2026
Since Dec 2020 93
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AI Summary
TIMEtagger is an open-source time tracking tool with an interactive timeline view and tag-based system instead of traditional projects. It offers comprehensive reporting (CSV/PDF), Pomodoro integration, offline usage with automatic synchronization, and works on all devices. The tool can be self-hosted or used as a managed service.
✓ Pros
- + Open source and self-hostable for full data control
- + Intuitive tag-based workflow instead of complex project structures
- + Offline capable with automatic synchronization across all devices
- + Developer-friendly with Web API and CLI tool
✗ Cons
- − No explicit team collaboration features or multi-user functionality
- − Focus on individual users could be limiting for larger organizations
Use Cases
- → Time tracking for freelancers to bill client projects with PDF reports
- → Personal productivity tracking with goal setting and Pomodoro technique
- → Flexible activity tracking via tags instead of rigid project structures
- → Self-hosted time tracking for privacy-conscious developers and teams
Who is it for?
Ideal for freelancers, solo entrepreneurs, and developers looking for flexible, privacy-friendly time tracking with a modern interface.
