Developer Utilities
Free JSON Validator
Validate, format, and compact JSON data in your browser with clear syntax errors. Your data stays on your device.
Your input is processed locally in this browser and is never uploaded.
Formatted output
Valid JSON
{
"name": "Code with Amrendra",
"tools": [
"validator",
"formatter"
]
}Validate and format JSON privately
Paste a JSON object or array to check its syntax as you type. The validator uses your browser's built-in JSON parser, reports the available error position, and lets you copy or download readable output. Your content stays in the current browser tab.