CronCalc

CronCalc

Cron expressions to plain English + next runs

CronCalc translates cron expressions to plain English and shows the next run times instantly. Paste any 5 or 6-field expression, get a human-readable schedule and upcoming executions.

Development Tools · Web development

Features

- 5-field and 6-field cron parsing

- Plain-English schedule description

- Next 10 run times computed in your timezone

- Flags common mistakes (dom/dow OR trap, Quartz-only syntax)

- Client-side, no signup

Use Cases

Verify a crontab line before committing it · explain a legacy schedule to a new teammate · check when a CI job actually fires · learn cron field syntax interactively

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Comments

chenzefeng09

Made this because I keep double-checking crontab.guru for the dom/dow OR trap. CronCalc flags that mistake explicitly plus Quartz dialect mismatches, and shows next runs in your local timezone.

Upvote Reply

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