JSON Formatter & Validator
Format, minify and validate JSON directly in your browser.
Paste JSON to validate and format it.
How to use JSON Formatter & Validator
Paste JSON, then choose Format for readable indentation or Minify for compact output. Invalid JSON produces an error instead of silently changing the data.
Privacy
This tool runs in your browser. ToolHyv does not need to receive the values you enter to perform this calculation.
Frequently asked questions
Does ToolHyv upload my JSON?
No. Formatting and validation are performed locally in your browser.
Can it repair invalid JSON?
No. It validates the input and reports parser errors; it does not guess how invalid data should be changed.