Developer

Cron Expression to Human Readable

Understand cron schedules and preview next run times. Processing stays on your device.

How to Use

  1. Paste a 5- or 6-field cron expression.
  2. Read the plain-English explanation.
  3. Review the next scheduled run times.

Key Features & Privacy Advantage

  • All processing happens locally in your browser. Your files are never uploaded to a server.
  • cronstrue descriptions.
  • Next N runs via cron-parser.
  • Great for CI and server schedules.

Technical Breakdown

Cron dialects vary (Linux vs AWS vs Quartz). This tool targets common 5/6-field expressions. Always verify against your scheduler’s docs for day-of-week numbering and extras like L/W/#.

Frequently Asked Questions

Is my expression uploaded?

No. All processing happens locally in your browser. Your files are never uploaded to a server.

5 vs 6 fields?

Both common forms are supported; seconds may appear in 6-field crons.

Timezone of next runs?

Previews use your browser’s local timezone unless noted otherwise.

Invalid cron?

You will see a parse error — check field count and ranges.