JSON Formatter & Validator

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 strings back to plain text instantly.

HTML Encoder / Decoder

Encode special characters to HTML entities or decode HTML entities back to text.

URL Encoder / Decoder

Encode or decode URL query strings and percent-encoded characters.

Regex Tester

Test regular expressions against sample text with real-time match highlighting.