Cron Expression Generator

Cron builder & decoder

Free · Designed for iPad. Not verified for macOS.

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.

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The developer, Chun Yu Leung, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary based, for example, on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Provider
  • Chun Yu Leung
Size
  • 24 MB
Category
  • Developer Tools
Compatibility
Requires iOS 13.0 or later.
  • iPhone
    Requires iOS 13.0 or later.
  • iPad
    Requires iPadOS 13.0 or later.
  • iPod touch
    Requires iOS 13.0 or later.
  • Mac
    Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © 2026 lcyu
  • Developer Website
  • Privacy Policy

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