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    3. Arbtt - Automatic Rule-Based Time Tracker

    Arbtt - Automatic Rule-Based Time Tracker

    Open-source automatic time tracking tool for Linux, Windows, and macOS that captures window titles and active applications every minute, then applies user-defined rules to categorize time retroactively. Written in Haskell, arbtt keeps raw data intact allowing rule refinement over time without losing historical information.

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    About this tool

    Overview

    Arbtt (Automatic Rule-Based Time Tracker) is open-source software for Linux, Windows, and macOS that runs as a desktop daemon, recording what windows are open and which is active, then categorizing time based on user-defined rules.

    How It Works

    Data Collection

    arbtt-capture runs in background and keeps a continuous log:

    • Which windows are open
    • Window titles
    • Which window has focus
    • Time since last user action
    • Saves one sample per minute (configurable)

    Rule-Based Categorization

    Mapping from raw window titles to "tags" is done by configuration file with powerful syntax:

    • Rules applied in real-time during evaluation, not recording
    • Raw data always intact
    • Can add more rules later for forgotten cases
    • Retroactive categorization

    Technical Details

    • Written in Haskell
    • Open source (GitHub: github.com/nomeata/arbtt)
    • Saves configurable samples (default: one per minute)
    • Privacy-conscious: log file may contain sensitive data - protect it well

    Platform Support

    • Linux
    • Windows
    • macOS

    Key Advantage

    Raw data preservation means you can refine categorization rules anytime without losing historical tracking information.

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    Information

    Websitearbtt.nomeata.de
    PublishedMar 20, 2026

    Categories

    1 Item
    Productivity Analytics

    Tags

    3 Items
    #open-source#rule-based#cross-platform

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