JSON Formatter
Parse the supplied JSON and serialize it with indentation using JSON.parse and JSON.stringify.
Parse the supplied JSON and serialize it with indentation using JSON.parse and JSON.stringify.
What this tool does
Parse the supplied JSON and serialize it with indentation using JSON.parse and JSON.stringify.
Review the output before the next step
Invalid JSON is rejected. Formatting can normalize number and escape representations; keep the original source when exact bytes matter. The fields available on this page are JSON input. Parse the supplied JSON and serialize it with indentation using JSON.parse and JSON.stringify.
How it works
Parse the supplied JSON and serialize it with indentation using JSON.parse and JSON.stringify.
Inputs
| Field | Example | Definition |
|---|---|---|
| JSON input | {"name":"Martzine","type":"tool"} | Paste the exact source text for json input. Spaces, quotation marks and non-ASCII characters may be meaningful; retain an unchanged copy. |
Step-by-step guide
Prepare the source
Supply JSON input. Keep the original material so the output can be compared with it.
Use JSON Formatter
Check JSON input, then select Use JSON Formatter.
Use the result
Compare the json formatter result with the unchanged source before copying or downloading it.
When to use it
Parse the supplied JSON and serialize it with indentation using JSON.parse and JSON.stringify. Invalid JSON is rejected. Formatting can normalize number and escape representations; keep the original source when exact bytes matter.
Example and scope
Example inputs: JSON input: {"name":"Martzine","type":"tool"}.
Invalid JSON is rejected. Formatting can normalize number and escape representations; keep the original source when exact bytes matter.
Worked output
{
"name": "Martzine",
"type": "tool"
}
Keep the displayed formula, input units and model scope with the result. Corrections or questions can be sent through the request section on this page.
Content updated: October 11, 2026