JSON Formatter & Validator
Format, minify, validate, inspect, copy, and download JSON in your browser with clear syntax-error locations and structural statistics.
JSON Input
Paste up to 2 MB of JSON. Processing stays in this browser.
Validation Result
Review validity, source location, structure, and the resulting JSON before using it.
How to Check JSON
Include the full root object, array, or primitive value, with double-quoted property names and strings.
Format for readability, minify for compact transfer, or validate without changing whitespace.
Check syntax, line and column, key sorting, unsafe-number warnings, and structural statistics before download.
JSON Handling Notes
Formatting changes whitespace. Alphabetical sorting changes object-key order but never array order. Standard JSON parsing keeps only the last occurrence when an object repeats the same key, so remove duplicate keys before relying on a transformed result. Unquoted integers outside ±9,007,199,254,740,991 are blocked to prevent silent precision loss; store such identifiers as quoted strings.
Data handling: Input, parsing, statistics, copy preparation, and download creation remain in your browser. Nothing entered here is uploaded or stored by this tool.
Turn Structured Data Into Useful Trade Content
Explore TradeGoAI services for organizing product information, preparing sales assets, and building clearer workflows across international markets.
Frequently Asked Questions
What JSON values can the validator process?
It accepts any valid JSON root value, including an object, array, string, number, boolean, or null. Property names and string values must follow standard JSON quoting and escaping rules.
Does formatting change the data?
Formatting changes whitespace and can optionally sort object keys. Array order is always preserved. The tool blocks unquoted integers outside JavaScript’s safe integer range because parsing and re-serializing them could change their value. Duplicate object keys are not reliably distinguishable after standard JSON parsing, so remove duplicates before using a transformed result.
How is the syntax-error location calculated?
The tool uses the position reported by the browser’s standards-based JSON parser when available, then converts it into a line and column and shows the nearby source line. Browser wording can vary, so the location should be treated as the best available pointer rather than a replacement for reviewing the surrounding JSON.
Why is the input limited to 2 MB?
The limit keeps formatting and structural analysis responsive on typical desktop and mobile browsers. Split larger exports into smaller files or use a local developer tool designed for very large datasets.
Is the JSON uploaded or stored?
No. Parsing, formatting, statistics, copying, and download creation happen in your browser. TradeGoAI does not receive or store the JSON entered in this tool.
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