Is JSON Validator free?

Yes. JSON Validator is free to use in the browser with no signup.

Does my data leave the browser?

No. The tool is designed for browser-local processing by default.

Validate JSON and inspect parse errors locally in your browser.

AppHelp

Collez du JSON pour vérifier la syntaxe, inspecter le type racine et copier la sortie formatée.

Valid JSON

Summary

object · 3 keys

{
  "name": "AppHelp",
  "local": true,
  "tools": 20
}

Is JSON Validator free?: Yes. JSON Validator is free to use in the browser with no signup.
Does my data leave the browser?: No. The tool is designed for browser-local processing by default.
What can I export?: Validate JSON and inspect parse errors locally in your browser.