Encode special characters to HTML entities or decode them back to plain text.
HTML Input
HTML Entities
Output will appear here…
JSON Formatter
Format, validate, and minify JSON with syntax highlighting and error detection.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings back to plain text instantly.
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.