Free tools
No signup required. Cron parsing, crontab building, and SLA math — the stuff you look up every few months.
Cron Expression Parser
Paste a cron expression to see a plain-English description and the next upcoming run times — free, no signup.
Crontab Generator
Build a valid cron expression from simple minute/hour/day fields — no memorizing syntax. Free, no signup.
Cron Syntax Cheatsheet
Quick reference for cron syntax: the five fields, special characters, @daily/@hourly shortcuts, and common examples.
SLA Uptime Calculator
Calculate allowed downtime per day, week, month, and year for any SLA percentage (99.9%, 99.95%, 99.99%, and more).
Want to be alerted, not just informed?
Pingtastic pages you the moment a cron job or site actually goes down.
Get started — $5/month