Developer Tools,
Free Forever

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⏰ Scheduler

Cron Expression Generator

Visual builder with next-run preview. Build cron schedules without guessing.

🔍 Text

Regex Tester

Real-time match highlighting. See exactly what matches as you type.

{ } Data

JSON Formatter & Validator

Format, minify, validate JSON instantly. Auto-formats as you type.

🔢 Encoding

Base64 Encoder / Decoder

Encode or decode Base64. UTF-8 safe, handles any character set.

🔗 Encoding

URL Encoder / Decoder

Safely encode URL components. Handles special characters in query strings.

🔑 Auth

JWT Decoder

Decode and inspect JWT tokens. View header, payload, and expiry status.

📝 Query

SQL Formatter

Beautify and format SQL queries. Supports ANSI, MySQL, PostgreSQL, SQLite.

More tools coming soon: Hash Generator · UUID Generator · Color Converter · YAML ↔ JSON

Cron Expression Generator

Build cron expressions visually · ⌘K to copy result

Visual Builder

Minute

Hour

Day of Month

Month

Day of Week

Generated Expression

Quick Presets

Next 5 Scheduled Runs

#{{ i+1 }}

Human Readable

Regex Tester

Real-time pattern matching · Green highlight = match

Pattern

Multiline Global Ignore Case

Test String

Matches ({{ regexMatches.length }})

Match Details

#{{ i+1 }} {{ m.text }} pos: {{ m.start }} - {{ m.end }}

Common Patterns (click to use)

JSON Formatter & Validator

Format, minify, sort keys · Auto-formats as you type

Input JSON ⚠ Invalid JSON ✓ Valid JSON

Output {{ jsonOutput.length }} characters

JSONPath Query (optional)

Base64 Encoder / Decoder

Encode or decode Base64 strings · UTF-8 safe

{{ base64Mode === 'encode' ? 'Plain Text (Input)' : 'Base64 String (Input)' }}

{{ base64Mode === 'encode' ? 'Base64 Output' : 'Decoded Text' }} ⚠ Error

URL Encoder / Decoder

Safely encode URL components · Handles special characters

{{ urlMode === 'encode' ? 'Plain URL or Text' : 'Encoded URL or Text' }}

{{ urlMode === 'encode' ? 'Encoded Output' : 'Decoded Output' }} ⚠ Error

JWT Decoder

Decode and inspect JWT tokens · Shows header, payload, expiry

Paste JWT Token

HEADER ✓ Valid JWT

{{ jwtDecoded.header }}

PAYLOAD ⚠ Expired ✓ Not Expired

{{ jwtDecoded.payload }}

Token Expires: {{ jwtExpiry }}

SQL Formatter

Beautify and format SQL queries · Supports multiple dialects

Input SQL

Formatted Output ⚠ Error

Developer Tools,Free Forever

Cron Expression Generator

Regex Tester

JSON Formatter & Validator

Base64 Encoder / Decoder

URL Encoder / Decoder

JWT Decoder

SQL Formatter

Cron Expression Generator

Visual Builder

Next 5 Scheduled Runs

Regex Tester

JSON Formatter & Validator

Base64 Encoder / Decoder

URL Encoder / Decoder

JWT Decoder

SQL Formatter

Developer Tools,
Free Forever