Developer Tools
Formatters, encoders, generators and converters for developers.
All Developer Tools
JSON Formatter
Format, validate and minify JSON with clear error messages.
JSON to CSV
Convert a JSON array of objects into CSV for Excel.
CSV to JSON
Convert CSV data into a JSON array.
Base64 Encode / Decode
Encode and decode Base64 with full Unicode support.
URL Encode / Decode
Percent-encode or decode URLs and query strings.
HTML Entity Encoder
Escape and unescape HTML special characters.
Hash Generator
MD5, SHA-1, SHA-256, SHA-384 and SHA-512 of text or files.
UUID Generator
Generate random version 4 UUIDs in bulk.
JWT Decoder
Decode a JSON Web Token’s header and payload.
Regex Tester
Test regular expressions with live match highlighting.
Unix Timestamp Converter
Convert Unix timestamps to dates and back, in IST or UTC.
Color Converter
Convert colours between HEX, RGB and HSL with a picker.
CSS Gradient Generator
Design linear and radial gradients and copy the CSS.
Box Shadow Generator
Build CSS box shadows visually.
CSS / HTML / JSON Minifier
Minify CSS, HTML and JSON to reduce file size.