Time tracking should be easy, secure, and without a monthly subscription fee. Time Roundup is a single HTML file that runs in your browser. Click start, click stop — that's it. Your data never leaves your computer. No account, no cloud, no internet required. Track billable hours, mark jobs complete, bill with invoice references, and export to CSV. Customizable rounding intervals, works offline, and device syncing via backup files. One file. One purchase. Total privacy.