💻 Code Tools

Format, validate, and transform code and data. All tools run 100% in your browser — no data is sent to any server.

JSON Formatter & Validator

Input JSON

Output

Base64 Encoder / Decoder

Input Text

Output

URL Encoder / Decoder

Input URL

Output

HTML Formatter

Input HTML

Output

CSS Formatter

Input CSS

Output

JavaScript Formatter

Input JavaScript

Output

Regular Expression Tester

Test String

Matches

Enter a pattern and test string to see matches...

JWT Token Decoder

JWT Token

Header

Payload

Signature

XML Formatter

Input XML

Output

Markdown Preview

Markdown Input

Preview