TimeTracker by tmtrckr is a privacy-first desktop tool for automatic time management and productivity analysis. The app captures active applications and window titles while offering manual entries, project and task management, billable-hours calculations, and an integrated Pomodoro timer. Data is kept offline in a local SQLite file with no account or cloud sync required. Freelancers and developers who need private, audit-ready time records and revenue tracking are the primary audience.

What the app records and how entries map to work

TimeTracker captures the active application name and window title using native system hooks and also logs website hostnames for browser work, then maps those signals to project entries. Users can correct or classify ambiguous spans after the fact; the tool supports project and task CRUD plus billable-hours calculation so tracked activity can translate directly into revenue figures for invoicing.

Does continuous tracking affect system resources during long sessions?

The app is built with the Tauri framework and distributed as .exe and .msi installers, which the developer positions as lighter than Electron-based alternatives. Because tracking runs locally and writes to a compact SQL store, the design targets background operation with a smaller footprint than typical web-wrapped desktop apps. That architecture reduces network activity, since no cloud synchronization is required during normal use.

Is it safe to run on machines with sensitive client data?

TimeTracker operates offline by default and does not require an account or telemetry, a deliberate privacy choice that keeps logs on the device. It does record window titles and website domains, so those strings are present in the local database; the app provides CSV and JSON export to inspect or purge entries if needed. The project is open-source, which allows code inspection for users who require transparency.

Who needs technical setup and who can use it out of the box?

The interface is minimal and takes cues from modern productivity tools, but some advanced capabilities require configuration. Custom categorization uses wildcard patterns, and accurate revenue reports depend on setting hourly rates per project. Casual users can rely on automatic tracking immediately, while power users benefit from investing time in categorization rules and project setup to produce precise reports.

A practical, privacy-minded choice for users willing to configure rules

TimeTracker is a pragmatic option for freelancers and developers who prioritize keeping tracking data local and audit-ready. Its offline design reduces exposure but asks users to spend time on pattern rules and billing setup to extract full value. Recommended.