Time & Timesheet Workspace · Local Web Application
Sprint.
Focused Work Timer & Rate-Locked Ledger


The problem & workflow requirements.
Freelancers and consultants lose track of billable time using clunky stopwatches that recalculate historical revenue when client rates change in the future.
Technical decisions and design.
Sprint features a large, distraction-free active timer with project presets. Each recorded interval locks in the accepted hourly rate at the exact moment of timer start. Paused durations are excluded from the dated ledger, and future rate updates never alter historical logs.
Deliberate engineering choices.
Single-purpose timer and ledger; does not include heavy project management Gantt charts or invasive employee monitoring software.
What is real vs. simulated.
Working browser application with synthetic client projects and precision actuals. Supports CSV exports.