AnyTool
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What does a cron expression mean?

Paste a cron expression into AnyTool's Cron Parser to get a plain-English description and the next scheduled run times. It supports seconds and Quartz fields plus timezones, and runs entirely in your browser — no upload, no signup.

  • Plain-English description of any cron expression
  • Adjustable list of upcoming run times with timezone & DST
  • Unix 5-field, 6-field (seconds), and 7-field Quartz support
  • 100% in your browser — no upload, no signup, works offline

What is

Cron Expression

A cron expression is a string of fields (minute, hour, day-of-month, month, day-of-week, optionally seconds and year) that defines a repeating schedule for running jobs. Parsing it produces a human-readable description and the next run times.

Developer Tools

Related terms

CrontabQuartz SchedulerNext Run TimeSchedule

How to Parse a Cron Expression

Translate a cron expression and preview its next runs entirely in your browser.

10 secWeb browser
  1. 1

    Enter the expression

    Type or paste a cron expression, or pick a preset like @daily.

  2. 2

    Read the description

    See the plain-English meaning and per-field breakdown.

  3. 3

    Preview next runs

    Choose a timezone and how many upcoming run times to list.

Result: A human-readable schedule and next run times

Frequently Asked Questions

Yes — it is free and computes everything in your browser, even offline.

AnyTool's Cron Parser does all parsing and next-run math locally, so it works in airplane mode and never phones home. There is no signup and no SaaS-monitoring funnel like the incumbents that gate features.

Yes — it handles 5-field Unix, 6-field with seconds, and 7-field Quartz expressions.

You can toggle between Unix and Quartz modes, so the description and next-run times match your scheduler — going beyond crontab.guru, which omits seconds and Quartz.

Yes — pick a timezone and it computes the next runs with correct DST handling.

Choose any IANA timezone and the upcoming run times honor that zone's DST rules, using the browser's built-in timezone database — no data files to download.

Detailed Explanation

Methodology

How Cron Parsing Works

AnyTool translates cron expressions into plain English (cronstrue) and computes upcoming run times (croner) entirely in the browser. It supports 5-field Unix, 6-field expressions with seconds, and 7-field Quartz with a year field, and lets you choose how many next runs to list. Timezone-aware next runs use the browser's built-in IANA database via Intl, so DST is handled correctly with no timezone data files to download.

  • Plain-English description via cronstrue
  • Next run times via croner with timezone & DST
  • Unix 5-field, 6-field seconds, and 7-field Quartz
  • Adjustable next-run count and common presets
  • No upload, no SaaS funnel; works offline