Developer Formatting
JSON, XML, regex, JWT and other everyday developer formats.
Encoding & Decoding · Text · Calculation & Conversion · Generators · Images
Tools
JSON Formatter
Beautify, minify and validate JSON right in your browser. No uploads, nothing leaves your device.
PopularRegex Tester
Live matches, capture groups and a replace preview for JavaScript regex.
PopularJSON to CSV
Flatten a JSON array into CSV, nested keys becoming columns.
JSON ⇄ XML Converter
Convert between JSON and XML in both directions.
JWT Decoder
Read a JSON Web Token's header and claims — signature not verified.
JSON Diff
Compare two JSON documents by path, with added, missing and changed values.
JSON to Java Class
Generate a plain Java POJO with nested types from a JSON sample.
JSON to Go Struct
Generate exported Go structs with json tags from a JSON sample.