Toolkit

JSON Formatter

Source JSON

JSON Tree Viewer

Enter JSON and press the button.

Encoder / Decoder

SQL Binder

Source SQL (use ? placeholders)

Parameter values (comma-separated, e.g. value1, value2, 123 or 123(Integer), test(String))

Formatting style Preserve source Compact Default Vertical

Bound SQL

SQL ↔ MyBatis Params

Source SQL / MyBatis XML

Direction Auto detect :name → #{name} #{name} → :name

Converted result

Regex Tester

Common regex samples (click to fill)

Complete regex

Test string

Result

Java regex code

Naming Converter

Multi-line Processor

Custom Template Utility

Prefix: Suffix: Delimiter:

Java Escape

Plain JSON

Java String

XML, MAP ↔ JSON

URL Parser

Query string / hash parameters

Final URL

HTML Entities

Common entity samples (click to fill)

Byte Calculator

UTF-8 (Korean: 3 bytes) 0 / -

EUC-KR (Korean: 2 bytes) 0 / -

Source text

Encoding UTF-8 EUC-KR Target bytes Padding character

Padding result

Crypto Tester

AES-128-CBC AES-256-CBC AES-256-GCM SHA-256

Plain Text

Secret key32 UTF-8 bytes; shorter values are zero-padded · excess bytes are truncated

IV 16 UTF-8 bytes; shorter values are zero-padded · excess bytes are truncated

For development and compatibility checks only. In production, do not use a fixed IV, simple zero-padded keys, or a directly entered password as an encryption key.

Result

Unix Timestamp Converter

Unix (seconds) -

Unix (milliseconds) -

Current time (KST) -

Timestamp → Date

Date → Timestamp

Quick conversion

QR Generator

Size

Error correction level

Enter text to display a QR code here.