JSON Formatter
Paste raw or minified JSON to format it with indentation and make nested data easier to read.
Format and validate JSON instantly in your browser. Paste raw JSON, beautify it, and copy clean formatted output for debugging, development, and review.
Input
Paste raw JSON
Output
Formatted JSON result
How it works
This tool parses your JSON input and reformats it with consistent indentation so it is easier to read. It is useful for debugging APIs, reviewing payloads, checking configuration files, and cleaning copied JSON.
If the JSON is invalid, the tool shows an error instead of producing broken output.
Common use cases
- Beautify minified JSON
- Check whether JSON syntax is valid
- Review API responses more clearly
- Prepare configuration files for editing
- Copy clean JSON into documentation or code reviews
Frequently asked questions
What does this JSON formatter do?
It validates JSON input and formats it into clean, readable output with indentation.
Does it show invalid JSON errors?
Yes. Invalid JSON will trigger an error message instead of formatted output.
Is this JSON formatter free?
Yes. You can use it for free without signing up.
Related tools
How to use
Paste the JSON, click Format JSON, then copy the formatted result or fix the error.
- Paste raw or minified JSON into the input panel.
- Click Format JSON to validate the syntax and apply indentation.
- Copy the formatted output into your editor, ticket, or documentation.
Use cases
Use it when JSON is valid but too dense to read comfortably.
- Beautify API responses before inspecting nested values.
- Clean config payloads or event samples before sharing them with a team.
- Prepare readable JSON for code reviews, tickets, and internal docs.
Example
A quick example of how this tool works.
Input
{"name":"Alex","role":"dev","active":true}
Output
{\n "name": "Alex",\n "role": "dev",\n "active": true\n}