Slotline is booking for a barber, a salon, a clinic, a garage, a tutor. The customer picks a service, a person and a time that is genuinely free. You can ask for a deposit. They get a reminder before they walk in.

The times on the page come from real shifts, minus existing appointments, minus cleanup buffers, minus leave. You will not get a 2pm booking on a day that person is off.

Included: - Four-step booking, each step a URL, usable before JavaScript loads - Staff diaries, services, buffers and time off - Optional deposits and the awkward states (unpaid, no-show, cancelled) - Reception and owner logins - A seeded barbershop with hundreds of appointments so the diary is never an empty calendar

If your current “booking system” is a WhatsApp thread and a paper book, this is the replacement.