Clockify
Time tracking and timesheets for teams and freelancers
Open-Source Projects
Discover top open-source software, updated regularly with real-world adoption signals.
Discover top open-source software, updated regularly with real-world adoption signals.
Command-line time tracking with stopwatch and calendar backfill
Portable time tracking utility offering simple stopwatch features and sophisticated calendar-based backfill with flexible reporting from the command line.
Timewarrior is a command-line time tracking utility designed for developers, system administrators, and productivity enthusiasts who prefer terminal-based workflows. It combines the simplicity of stopwatch functionality with advanced calendar-based backfill capabilities, allowing users to track time in real-time or retroactively log activities.
The tool provides flexible reporting mechanisms that transform raw time data into actionable insights. Users can start and stop time tracking with simple commands, tag intervals for categorization, and generate reports spanning arbitrary date ranges. The calendar-based backfill feature enables users to reconstruct their work history even when they forget to start the timer.
Built in C++ with full C++17 support, Timewarrior is portable across Unix-like systems and actively maintained by the Gothenburg Bit Factory community. The project shares ecosystem ties with Taskwarrior, offering integration opportunities for task-based time tracking. Installation options include binary packages from community repositories or building from source using CMake. The MIT license ensures flexibility for both personal and commercial use.
When teams consider Timewarrior, these hosted platforms usually appear on the same shortlist.
Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.
Freelance Developer Billing
Track billable hours across multiple client projects with tagged intervals and generate detailed reports for accurate invoicing
Retrospective Time Logging
Use calendar backfill to reconstruct work history from calendar events or memory when real-time tracking was forgotten
Personal Productivity Analysis
Monitor time allocation across activities and projects to identify productivity patterns and optimize work habits
Task-Based Time Tracking
Integrate with Taskwarrior to automatically track time spent on specific tasks and correlate effort with task completion
Backfill allows you to retroactively log time intervals by specifying past dates and times, enabling you to reconstruct your work history even when you forgot to start the timer.
No, Timewarrior is a command-line utility designed for terminal use. It has no GUI but can be integrated with third-party visualization tools if needed.
Yes, Timewarrior shares community spaces and ecosystem ties with Taskwarrior, offering integration opportunities for task-based time tracking workflows.
Timewarrior is portable across Unix-like systems including Linux, macOS, and BSD. It requires a C++17-compliant compiler and can be built from source or installed via community packages.
Timewarrior is primarily designed for individual use. While scriptable and portable, it lacks built-in collaboration features like centralized reporting or approval workflows common in team time tracking solutions.
Project at a glance
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