# Cron Expression Generator

> Free cron expression generator and explainer. Build cron schedules, read them in plain English, use common presets and preview the next run times — no signup.

Build and understand cron expressions with a plain-English explanation, common presets and a preview of the next scheduled run times.

- **Live tool:** https://www.toolnova.org/dev-tools/cron-generator
- **Category:** Developer Tools (https://www.toolnova.org/dev-tools)
- **Price:** Free
- **Requirements:** Runs in a modern web browser · No signup · No install

## What this tool does

- Plain-English explanation of any cron
- Common schedule presets
- Next 5 run times preview
- Field-by-field breakdown
- One-click copy
- Runs locally in your browser

## How to use Cron Expression Generator

1. **Enter or pick a schedule** — Type a cron expression or choose a preset.
2. **Read the explanation** — See it described in plain English.
3. **Check the next runs** — Preview the upcoming fire times.
4. **Copy** — Copy the expression into your crontab or scheduler.

## Common use cases

- Schedule a server cron job
- Configure a CI/CD or backup schedule
- Understand an existing crontab entry
- Set up a scheduled task or GitHub Action

## About

### Cron syntax, finally readable

Cron expressions pack a schedule into five fields — minute, hour, day-of-month, month and day-of-week — which is powerful but easy to get wrong. Type an expression and this tool translates it into a plain-English sentence like 'At every 15th minute' and breaks down each field, so you can confirm it does what you intend before deploying it.

### Presets and next-run preview

Not sure of the syntax? Pick a common preset — every 5 minutes, hourly, daily at 9am, weekdays 9–5 — and tweak from there. A live preview lists the next five times the job will fire in your local time zone, catching mistakes instantly. Copy the finished expression with one click. Everything runs locally.

## FAQ

### What do the five cron fields mean?

In order: minute (0–59), hour (0–23), day of month (1–31), month (1–12) and day of week (0–6, where 0 is Sunday). A * means 'every', and */n means 'every n'.

### How do I run a job every 15 minutes?

Use '*/15 * * * *'. Pick the 'Every 15 minutes' preset here and the plain-English description and next run times confirm it for you.

### What time zone are the next runs shown in?

The preview uses your browser's local time zone. Remember that your server may run cron in UTC or another zone, so adjust accordingly.

### Is it free?

Yes, completely free with no signup, running entirely in your browser.

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