Explain, validate, generate, convert, and preview Unix cron — then activate an HTTP job on CronFox. CronGPT stays at /crongpt for natural-language generation.
Describe a schedule in English and generate a Unix cron expression with AI.
Build a 5-field expression with dropdowns. Live English and next runs in your browser.
Paste an expression and get a plain-English translation plus the next five run times.
Live syntax check with per-field errors. Catch Quartz vs Unix mistakes before you deploy.
Next 10 or 20 fire times in any IANA timezone. DST-aware preview, all local.
Schedule plus command for crontab -e, with PATH, MAILTO, and logging.
Copy-ready expressions for every minute, 5 minutes, hourly, weekdays, and more.
Unix crontab ↔ Quartz ↔ AWS EventBridge, with warnings when a feature has no equivalent.
Preview an HTTPS URL on a Unix schedule, then activate it on CronFox with logs.
Five-field reference table and a live mini-builder. Learn what * * * * * means.