Tool Workspace
Enter content, process with one click
1JSON Format Cheat Sheet
Objects are wrapped in curly braces with double-quoted keys; arrays use square brackets.
Keys and string values must use double quotes, not single quotes.
Supports numbers, strings, booleans (true/false), null, objects and arrays.
This tool tolerates extra commas automatically; trailing commas parse correctly too.
2Introduction
The JSON Formatter rearranges messy JSON data into a clear, easy-to-read structure. Whether it is compressed data from an API or a snippet copied from logs, it completes the conversion in seconds, making it easy to locate problems quickly. It offers flexible indentation settings - 2 or 4 spaces and more - plus compact or expanded view modes. Code is color-coded by data type so strings, numbers, and booleans stand out. Built-in parse checking flags format errors to help you spot issues fast. During daily development, API integration, or config handling, this tool saves tidy-up time. It is a lightweight, practical helper for frontend developers, testers, and operations staff who occasionally inspect data.
3How to Use
Paste JSON data
Paste the JSON code you want to tidy up into the input box. You can paste directly or upload a file.
Set indentation and view
Choose the number of indentation spaces and switch between expanded or compact views as needed.
Click the format button
The tool automatically parses and lays out the JSON, giving you a clean, highlighted structure in a moment.
4FAQ
What is JSON formatting used for?
JSON formatting rearranges compressed or messy JSON data by adding indentation and line breaks, making its structure clear for easy reading and debugging.
Does this tool support large files?
Yes, but we recommend handling it in the browser as large files may affect performance. We have optimized processing speed to smoothly format larger JSON.
