What is this tool?
Format, validate, beautify, and minify your JSON data in real-time. Features lightweight syntax highlighting, copy-paste, error highlighting, and file download support.
When to use it?
Use this tool when debugging API responses, formatting nested configurations, or validating raw JSON payloads for syntax errors.
How does it work?
The JSON content is parsed via standard JavaScript compilers. Invalids trigger location-based syntax error indicators, highlighting precise lines and columns.
Example Conversions
Sample Input:
{"user":"john","roles":["admin","user"]}Sample Output:
{
"user": "john",
"roles": [
"admin",
"user"
]
}Frequently Asked Questions
How does the JSON validator detect errors?
It compiles inputs using standard JSON.parse hooks, intercepting location details when syntax parsing failures occur.
Can I upload files to format?
Yes. You can upload files under 5MB, which are processed entirely client-side using browser FileReader APIs.