HTTP Status Codes

API Tester

Test REST APIs directly from your browser. Send GET, POST, PUT, PATCH, DELETE requests with custom headers and body. View responses with timing.

JSON Formatter

Format, validate, and minify JSON data with syntax highlighting.

Base64 Encoder / Decoder

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

Regex Tester

Test and debug regular expressions in real-time. Matches highlighted, capture groups, replacements.

CSV to JSON Converter

Convert CSV data to JSON arrays and JSON arrays back to CSV. Custom delimiters supported.

Text Diff Checker

Compare two texts and see additions, removals, and unchanged lines highlighted side by side.