Kimai is a free & open source timetracker. It tracks work time and prints out a summary of your activities on demand. Yearly, monthly, daily, by customer, by project … It’s simplicity is its strength. Due to Kimai’s browser based interface it runs cross-platform, even on your mobile device.
Kimai v2 is a web-based multiuser time-tracking application. Free for everyone: freelancers, agencies and companies track their employee working-times and generate invoices.