Developer · Free browser tool

JSON Formatter

Beautify, indent & minify JSON.

Runs on your deviceNo account needed

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Make compact JSON readable or remove formatting to produce compact JSON. The tool parses the input, reports syntax errors, and serializes valid JSON using your selected indentation.

How to use JSON Formatter

Paste JSON

Enter a JSON object, array, or other valid JSON value.

Choose indentation

Select two spaces, four spaces, a tab, or Minify.

Use the output

Review the formatted result, then copy it or download a .json file.

Inputs and options

Control	Available values or units
Indent	2 spaces, 4 spaces, Tab, Minify

Example

Input: {“name”:”Reddy”,”active”:true} Choose 2 spaces to display each property on its own line.

What to check

JSON does not allow comments, trailing commas, or single-quoted property names. Large integer values beyond JavaScript’s safe integer range can lose precision; use strings for exact identifiers.

Common questions

Is JSON Formatter free?

Yes. There is no account requirement or payment step to use this tool.

Where is my input processed?

Inside your browser. This tool does not submit your input to a processing server. The hosting service still receives normal requests to load the website and its assets.

Will this work on my phone?

It is designed for current browsers on phones and computers. Available memory, file size, browser format support, and the tool’s controls determine what your device can process.