Parse JSON in JavaScript

How to parse a JSON string into an object and serialize (stringify) an object back to JSON in JavaScript. JSON.parse and JSON.stringify are built into every browser and Node.js — no library needed. Need to clean up the JSON first? Use the formatter & validator.

Parse JSON (string → object)

const obj = JSON.parse(text);

Stringify (object → JSON string)

const text = JSON.stringify(obj, null, 2);

Frequently asked questions

How do I parse JSON in JavaScript?

JSON.parse and JSON.stringify are built into every browser and Node.js — no library needed. Parse with the snippet above; the result is a native object/map you can read.

How do I pretty-print JSON in JavaScript?

Use the stringify snippet above with indentation, or paste your JSON into the formatter on this page.