JSON Formatter, Validator & Tree Inspector

100% In-Browser · Never Uploaded

Format, validate and explore JSON. Large integers, precise decimals and exponents keep every digit.

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Documentation & Technical Boundaries

Standard JavaScript JSON.parse converts numbers into IEEE 754 floating point values, rounding numbers outside safe integer bounds. ParsePouch preserves original numeric tokens so IDs and precise values stay intact.

Are large integers or precise decimals modified?

No. ParsePouch preserves numeric tokens directly from source text without rounding.

Is my data transmitted to any backend?

Never. Processing happens locally in your browser memory.