Online JSON Formatter & Validator

JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse and generate. Our Online JSON Formatter & Validator helps you make your JSON data more readable or compact it for efficiency. When you paste your JSON, the tool first attempts to validate it. If it's valid, you can then choose to "Format" it, which adds indentation and line breaks (pretty-printing) to make the structure clear, or "Minify" it, which removes all unnecessary whitespace to reduce its size. This is invaluable for developers working with APIs, configuration files, or any scenario involving JSON data.

Why Format or Minify JSON?

Formatting (Pretty-Printing) JSON makes it significantly easier for humans to read and understand the hierarchical structure of the data. This is crucial during development, debugging, or when reviewing API responses. Indentation and line breaks clearly delineate objects and arrays. Minifying JSON, on the other hand, removes all unnecessary whitespace (spaces, tabs, newlines). This reduces the overall size of the JSON data, which is beneficial for network transmission, as smaller data means faster transfer times and less bandwidth consumption. Our tool provides both capabilities, allowing you to switch between human-readable and machine-optimized formats as needed.