Online JSON Formatter, Validator and Minifier

Format, beautify, validate, minify and stringify JSON in one browser-based editor. It helps developers inspect API responses, configuration files, logs and request payloads while preserving the structure of objects and arrays.

Readable indentation makes nested data easier to debug, while minification reduces unnecessary whitespace when a compact JSON value is needed.

Instructions

Minify

Feature that removes every line break from the JSON, as well as spaces that are not part of the JSON field values.

Stringify

Feature that converts a JSON into a stringified format; in short, this feature converts line breaks into "\n" and " into \".

Format

Feature also called beautify, which structures a minified or stringified JSON into a formatted JSON, with line breaks and indentation.

What is JSON

JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write, as well as easy for machines to parse and generate. It is based on a subset of the JavaScript programming language, although it is language-independent. JSON is often used to transmit structured data over the internet between a server and a web client, but it is also widely used in many other data storage and exchange situations.

JSON was derived from a programming language called JavaScript, which is commonly used to create interactive web pages. It was formalized by Douglas Crockford in the RFC 4627 specification in 2006. Since then, it has become a popular and widely adopted data format across many areas, such as software development, data analysis, the Internet of Things (IoT) and much more.

Its simplicity and ability to represent data in a structured and readable way make JSON a common choice for many applications. A JSON object consists of key/value pairs, where the keys are strings and the values can be strings, numbers, booleans, arrays, objects or null. This makes it extremely flexible for representing a wide variety of data.