json tool

JSON Formatter

Format JSON into readable indentation before debugging nested payloads.

Run Tool

Provide exact input, inspect deterministic output, and validate with a real endpoint or runtime.

Output

Enter values to see the result.

Behavior

Parses JSON and prints it with stable indentation.

Cleaning up a compact JSON payload before reviewing it.
Checking nested keys and arrays without opening a heavier tool.

Input / Output

A one-line JSON blob can become much easier to inspect after formatting.
Nested data is easier to reason about when indentation reveals structure clearly.

Edge Cases

Validate syntax first, then evaluate semantic correctness in the target system.
Pasting JavaScript-like objects that are not valid JSON.
Assuming pretty formatting can fix invalid syntax.

Next Tool

Next Debug

JSON Validator

Check whether a JSON block is structurally valid before formatting, minifying, or sending it elsewhere.

Next Debug

JSON Minifier

Compress valid JSON into a tighter one-line representation for transport, storage, or quick payload comparison.

Next Debug

Query String Parser

Split a query string into decoded key-value rows when a copied URL is hard to inspect.

Important Use Notice

Browser-side developer helper only. Verify output against a real environment, and do not paste secrets, regulated personal data, private keys, tokens, or confidential client material unless you have permission and an approved workflow.