Cron Expression Generator

Cron Expression Generator puts essential scheduling tools in your pocket. Build cron expressions in the Generate tab, decode any cron string in the Decode tab, and copy results with one tap—ideal for developers, DevOps, and anyone working with cron jobs or task schedulers.

► Build & Decode • Generate tab: edit five fields (minute, hour, day of month, month, day of week) and see the cron expression and schedule update live. • Decode tab: paste any cron expression and see it decoded into plain English as you type—no decode button needed. • Full cron syntax: * (every), ranges (1-5), lists (1,3,5), steps (*/5), and step-with-range (0-23/2). • Enter values in valid ranges (e.g. 0-59 for minutes, 0-23 for hours, 0-7 for day of week with 0 and 7 = Sunday). • Human-readable schedule (e.g. "Every 2 minutes, minutes 0 through 23 past the hour"). • Invalid expressions are clearly marked with an error state.

► Copy & Share • One tap to copy the cron expression. • One tap to copy the schedule description.

► General • Dark and light theme. • Expandable Cron Rules section for syntax reference on both tabs. • Portrait layout for one-handed use. • No account required.

Built for quick cron checks, CI/CD configs, and scheduling—free to use, with ads to support development.