Business profile · Field service & trades
GridRoster
Free rotating shift schedule generator with no signup required
GridRoster generates printable rotating shift schedules for 4-crew operations using standard patterns like DuPont and Panama, with 12-hour shifts and no signup
About
GridRoster is a browser-based tool that generates rotating shift schedules for crews. It offers eight rotation patterns including DuPont, 2-2-3/Panama, Pitman, 4-on-4-off, Continental, 24-48, and 48-96, all designed for 12-hour shifts. The tool runs entirely in your browser with no accounts, signup, or data collection. Schedules are printed as landscape calendars, one month per page, and are deterministic—the same inputs always produce the same calendar every time. The site includes printable yearly calendars, a duty rotation generator, handover templates, and detailed guides comparing shift patterns. Built by a single independent developer, GridRoster uses fixed rotation rules rather than AI, ensuring managers and crews can verify any shift by counting days.
Features at a glance
- DuPont 28-day rotation pattern
- 2-2-3 Panama 14-day rotation pattern
- Pitman fixed rotation pattern
- 4 on 4 off 16-day rotation pattern
- Continental 28-day 8-hour shift pattern
- Full 12-month calendar generation
- Duty rotation generator for any list of names
- CSV export functionality
Pricing
Pricing model: Free
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Quick answers
- Is GridRoster really free?
- Yes. There is no signup, no account, and no trial that expires. The generator runs entirely in your browser, so there is nothing to pay for and nothing to log into.
- Does it use AI to build my schedule?
- No. Every schedule is built from fixed, published rotation rules like DuPont and Panama. The same inputs always produce the same calendar, so anyone on your crew can check it by hand.
- How do I print or share the schedule?
- Hit Print / PDF and choose "Save as PDF" for a high-resolution file, or print straight to paper. The output is landscape, one month per page, with crew colors preserved and made to be pinned on the wall.
- Does GridRoster collect my schedule data?
- No. Everything you type—crew names, dates, rosters, and handover notes—is computed in your browser and never leaves it. The only data collected is anonymous page-view analytics used to see which patterns get printed.
- Why is GridRoster free?
- Because it is a fully static site with no servers, databases, or accounts to pay for. Serving a generated page costs almost nothing, so there is nothing to charge for. Reserved advertising slots may fund upkeep in the future, loaded in a way that keeps the tool fast.
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