JavaScript & Web Dev

How to Format and Pretty Print JSON in JavaScript

Dev Tech Team• 2026-09-20• 4 min read
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## Overview of JSON Formatting in JavaScript

When working with APIs or Node.js services, JSON payloads are frequently returned as compact strings without newlines or indentation. JavaScript provides a built-in method, `JSON.stringify()`, that accepts extra parameters for pretty printing.

Using JSON.stringify for Pretty Printing

The `JSON.stringify(value, replacer, space)` method accepts a third parameter `space` to specify indentation spacing:

// Pretty print with 2 spaces const formattedJson = JSON.stringify(userData, null, 2); console.log(formattedJson); ```

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