Your smoothest path from work done to invoice paid

Time tracking and invoicing, with automatic payment reminders and overdue payment policies built in

Built for freelancers and time-based professionals

Contract0 is made for developers, designers, consultants, and anyone who bills by the hour.

Turn tracked time into perfect invoices, send smart reminders, and pause work when payments are overdue — all in one frictionless flow.

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Track your time. Get paid.