Developer · Browser processing

Private JSON Formatter, Minifier and Validator

Paste JSON to make it readable, compact it for transport or locate a syntax problem. Nothing is sent to an API.

JSON Formatter and Validator processing workspace running locally in a browser
JSON Formatter and ValidatorRuns on this device

The workspace does not submit its text or selected local file to TXTNimble. Refreshing or closing the page clears the current result.

Common questions

How this tool behaves

Does it execute JSON content?

No. It only parses and serializes data.

Can it sort object keys?

Yes. Optional recursive key sorting is available.

Why is a number displayed differently?

JavaScript uses IEEE-754 numbers, so extremely large integers may lose precision.

Practical examples

When to use it

API response

Pretty-print a compact response.

Configuration file

Validate syntax before saving.

Continue the workflow

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