JSON Tool FAQ
How do I minify JSON?
Paste JSON into the input box and click Minify. Whitespace is removed to produce a compact single-line output.
Can I minify large JSON payloads?
Yes. Click Minify to remove extra whitespace and reduce payload size for transport or storage.
Where can I validate or compress JSON?
Validation is available on the JSON Validate page, and compression/optimisation is available on the JSON Compress page.
Does this tool send data to a server?
No. Minification is performed client-side only.
Example input/output
Input: {
"name": "Ada",
"age": 30
}
Output: {"name":"Ada","age":30}
How it works
This tool parses the JSON with JSON.parse() to validate it, then re-serialises it with JSON.stringify() without indentation. This removes all spaces, tabs, and newlines while preserving all values and structure. Processing runs in your browser.
Common use cases
- Reduce JSON payload size before embedding in source code or sending over a network
- Minify JSON configuration files for production deployments
- Remove comments and whitespace from JSON before serialisation