Free Cron Expression Parser & Generator
Parse any cron expression to plain English and see the next 5 run times. Or build a cron expression visually with dropdowns, presets, and field reference. Supports */n, ranges, lists.
Cron Expression Parser & Generator
Parse any cron expression to plain English and see the next 5 run times. Or build a cron expression visually with presets.
Parse Cron Expression
Format: minute hour day month weekday
Field Reference
| Field | Valid Range | Examples |
|---|---|---|
| Minute | 0–59 | *, */5, 0, 15,30,45, 0-29 |
| Hour | 0–23 | *, */2, 9, 9-17, 0,12 |
| Day of Month | 1–31 | *, 1, 15, 1,15, 1-7 |
| Month | 1–12 | *, 1, 6, 3,6,9,12, 1-6 |
| Day of Week | 0–7 (0=Sun) | *, 1-5, 0, 1,3,5, 6,0 |
* — Any value*/n — Every n units (e.g. */5 = every 5)n — Specific valuen,m — List (e.g. 1,15)n-m — Range (e.g. 9-17)n-m/s — Range with stepFrequently Asked Questions
What is the Cron Expression Parser & Generator?
The Cron Expression Parser & Generator is a free online tool that parse any cron expression to plain english and see the next 5 run times. or build a cron expression visually with dropdowns, presets, and field reference. supports */n, ranges, lists.. It runs entirely in your browser with no installation or sign-up needed.
What cron syntax is supported?
Standard 5-field cron: minute, hour, day-of-month, month, day-of-week. Supports *, */n, ranges (n-m), lists (n,m), and step values.
How are next run times calculated?
The tool simulates cron scheduling from the current time, iterating forward minute-by-minute to find the next 5 matching times.
Does it support 6-field (with seconds) cron?
Currently supports standard 5-field cron format used by crontab, GitHub Actions, and most cron schedulers.
Is the Cron Expression Parser & Generator free to use?
Yes, the Cron Expression Parser & Generator is 100% free with no registration, no hidden fees, and no usage limits. All processing happens locally in your browser, ensuring complete privacy.
Is my data safe with this tool?
Absolutely. The Cron Expression Parser & Generator processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.
Does the Cron Expression Parser & Generator work on mobile devices?
Yes, the Cron Expression Parser & Generator is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the Cron Expression Parser & Generator in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
How do I use the Cron Expression Parser & Generator?
Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.
Which browsers are supported?
The Cron Expression Parser & Generator works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
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About Free Cron Expression Parser & Generator
Free Cron Expression Parser & Generator is a free, browser-based tool in our Utility Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.