JSON Formatter & Validator

Format, validate, and syntax-highlight JSON data.

Developer ToolsRuns on our server · input is not storedNo account · No API key

Try it

Call it from an agent

The same endpoint powers the form above. Send JSON, get JSON — no key, no signup.

curl -sX POST 'https://itsfully.online/backend/connector-api.php?action=execute' \
  -H 'Content-Type: application/json' \
  -d '{"tool":"json-formatter-validator","data":{ /* see input fields above */ }}'

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