What is a cron expression?

A string of 5 or 6 fields defining a recurring schedule. Standard: minute, hour, day of month, month, day of week. With seconds: add seconds as the first field.

When do I need 6-field cron?

Spring Boot @Scheduled, Quartz scheduler, and some cloud services use 6-field cron where the first field is seconds (0-59).

How do I run a cron job every 5 minutes?

Use */5 * * * * where */5 in the minute field means every 5 minutes.

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⏱ Cron Builder

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Auth

JWT JWT Decoder

Converters

🎨 Color Convert 📊 JSON to CSV 🔄 HTML to MD 🔀 JSON-YAML 📑 CSV to JSON 🔢 Base Convert 📄 MD to HTML

Crypto

# UUID & Hash

Data

{ } JSON Formatter

Encoding

B64 Base64 🔗 URL Encode 🏷️ HTML Entity 🖼️ Img to B64

Formatters

📝 Markdown 🎭 CSS Minify 🗃️ SQL Format ⚡ JS Minify 📋 XML Format

Generators

🔐 Password Gen 📱 QR Code 🌈 Gradient 🎴 Box Shadow ⬜ Border Radius ⭐ Favicon Gen 📐 Flexbox 🔲 Grid ✨ Animation 💬 Text Shadow

Scheduling

⏱ Cron Builder

Text

.* Regex Tester 📄 Diff Checker 🐌 Slug Gen Aa Lorem Ipsum 🔤 Word Counter 🔒 Chmod Calc Aa Case Convert 📈 Word Freq 🔃 String Reverse 🧹 Dedup Lines

Time

🕐 Timestamp

Web

🏗️ Meta Tags 🌐 OG Tags 🤖 Robots.txt 📡 HTTP Codes ↪️ .htaccess

Cron Expression Builder

Build cron expressions visually or manually. Supports 5-field (standard) and 6-field (with seconds) formats.

Include seconds (6-field)

Presets:

Second

Minute

Hour

Day (Month)

Month

Day (Week)

Cron Expression (6-field)

min hour day mon dow

Next 5 Run Times

Enter a valid cron expression

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