Formatador JSON

Valide, formate e reduza JSON localmente no navegador.

Tool controls, results and detailed help are currently in English.

JSON formatter

Your data. Your device. Clear results.

Runs on your device

Open a local file (formats automatically)

JSON input

IndentProcessed on your device. Never uploaded.

Maximum input: 2 MB (2,000,000 bytes). Maximum output: 8 MB. Processing stops after 15 seconds; your original input is kept. Strict JSON only: no comments or trailing commas. Up to 200 nesting levels. Number text, duplicate keys and key order are preserved.

About

Valide, formate e reduza JSON localmente no navegador.

Validate before using

Formatting validates the JSON syntax. It does not check an application-specific schema. Large number text, key order and duplicate keys are preserved in the formatted output.

Keep your data local

Paste or open a file, then format, minify, copy or download it. This tool does not upload or persist your input.

Try this

Choose Load example, then Format. The ID 9007199254740993 keeps every digit. Minify removes whitespace without converting that number to a rounded JavaScript value.

Use the result as one part of your troubleshooting. Network information can change over time.