Cron Expression Explainer — Free & Private

A free edge API by formatho.com, privacy-first developer tools.

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Free, no signup, runs entirely in your browser — your data never leaves your device.

🔓 Free🔒 Zero tracking🚫 No data collection⚡ Edge-fast

Usage

curl "https://cron-parser-formatho.filesformatho.workers.dev/api?expr=0+9+*+*+1-5"

Returns a plain-English explanation of the expression plus the next 5 run times (UTC). Supports standard 5-field cron and @yearly/@monthly/@weekly/@daily/@hourly/@reboot aliases.

Full parameter reference: /api endpoint.

Privacy-first: expressions are parsed in-memory at the edge. No logs, no analytics, no cookies.

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Build crontab schedules interactively, entirely client-side: Crontab Generator on formatho.com.

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