JSON is everywhere — API responses, config files, data exports, webhooks. And it almost never arrives in a readable state. Here's how to format, validate, and fix JSON instantly at Ultimate Tools . What JSON formatting actually does Raw JSON from an API response or a log file often looks like this: { "user" :{ "id" : 1 , "name" : "Alice" , "email" : "alice@example.com" , "roles" :[ "admin" , "editor" ], "settings" :{ "theme" : "dark" , "notifications" : true }}} Enter fullscreen mode Exit fullscreen mode Formatted (pretty-printed) version: { "user" : { "id" : 1 , "name" : "Alice" , "email" : "alice@example.com" , "roles" : [ "admin" , "editor" ], "settings" : { "theme" : "dark" , "notifications" : true } } } Enter fullscreen mode Exit fullscreen mode Same data — just structured with indentation and line breaks so you can actually read it. Formatting doesn't change any values. When you need a JSON formatter Reading API responses — curl output, Postman, browser DevTools — all return compact JSON.…