Introducing Cron Expression Parser

Cron Expression Parser is now live on Tools.Town — a developer tool that decodes cron expressions into plain English and shows you the next 10 scheduled run times, so you can be sure your job runs exactly when you intended.

Paste any cron expression and instantly understand what it actually does.

What Does It Do?

Human Readable

Translates expressions like '0 9 * * 1-5' into 'Every weekday at 9:00 AM' — no cron syntax memorization required.

Next Run Times

Shows the next 10 scheduled execution times from now, in your local timezone — no surprises at 3 AM.

Builder

Use the visual builder to set minute, hour, day, month, and weekday fields without writing a single character.

Supports Unix 5-field, 6-field with seconds, Quartz/Spring format, and macro shortcuts like @daily and @monthly.

How It Works

Paste the expression

Paste your cron expression into the input field, or use the visual builder to construct one.

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Read the translation

The plain-English translation appears immediately: 'Every 15 minutes between 9 AM and 5 PM, Monday to Friday'.

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Preview run times

Scroll down to see the next 10 actual run timestamps in your local timezone.

Why We Built It

Cron expressions are written once and forgotten — until something breaks at 2 AM and you’re squinting at 30 4 1,15 * 5 trying to remember what it does. A parser that instantly translates the expression and shows real timestamps turns a common source of on-call incidents into a two-second sanity check.

Try It Now

Free Tool

No sign-up In-browser

Cron Expression Parser

Translate cron expressions to plain English and preview the next 10 run times in your timezone.

Plain English outputNext 10 run timesVisual builderQuartz format support

Parse Cron Expression

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Frequently Asked Questions

What cron formats are supported?

Standard 5-field Unix cron (minute, hour, day-of-month, month, day-of-week) and 6-field formats with seconds. Also supports common macros like @daily, @weekly, @hourly.

Does it support quartz cron expressions?

Yes. Quartz/Spring cron uses a 6 or 7 field format — the parser detects and handles both Unix and Quartz formats.

How far ahead does it preview runs?

The tool shows the next 10 scheduled execution times from the current moment, in your local timezone.

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Introducing Cron Expression Parser — Now Live on Tools.Town