How to use this tool
Enter the JSON input and the result appears straight away. Everything runs in your browser, so nothing you type is uploaded.
Formula
JSON.parse() followed by JSON.stringify(value, null, 2).
Example
A compact JSON object is returned as readable, indented JSON.
Prepare your inputs
Paste valid JSON with quoted property names and without comments or trailing commas.
Understand the result
Formatting checks syntax only. It does not validate a schema; duplicate property names can be overwritten and very large numbers can lose precision.
About this version
This page uses a shared calculation method. Industry and country labels provide a browsing context; they do not change the formula or imply specialist or local regulatory validation. Currency labels do not perform currency conversion.
Limitations and assumptions
Validates JSON syntax only. It does not validate an application-specific schema or sanitize data. Detailed content, accessibility and edge-case review remains ongoing.