JSON Formatter & Validator
{
"name": "Rangdom",
"tools": [
"json",
"base64"
],
"local": true
}Formatted locally in your browser with JSON.parse and JSON.stringify. Your JSON stays only on this page.
Format and validate JSON
Paste JSON to make it readable with two-space indentation, or minify it for compact storage and API payloads. Invalid JSON shows a clear validation message before any output changes.
When to use this tool
Use the JSON formatter to inspect API responses, configuration snippets, fixture data, and copied objects with consistent indentation.
Privacy and limitations
Formatting runs locally in your browser. Formatting does not make invalid JSON valid; it only parses valid JSON and prints it in a more readable layout.