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JSON Formatter
Format and validate JSON data. This tool runs 100% locally in your browser.
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What is JSON Formatter?
Beautify and validate your JSON code. This tool parses your JSON string, checks for syntax errors, and outputs a clean, indented version that is easy to read and debug.
When to Use This Tool
- 1Debugging API responses
- 2Formatting config files
- 3Validating JSON syntax
Examples
Input
{"key":"value"}
Result
{
"key": "value"
}
Frequently Asked Questions
Does it fix errors?
It will highlight where the error is (like a missing comma), but you usually fix it manually to ensure data integrity.
Privacy & Security
Privacy is our priority. Unlike many other online tools, ToolsHub doesn't upload your data to any server. Whether you're processing sensitive text, calculating financial data, or generating passwords, everything stays in your browser.