JSON Formatter
Format, validate, and beautify JSON data instantly.
Click Format, Minify, or Validate
Indent:
Frequently Asked Questions
What does this JSON formatter and validator do?
It parses your raw JSON string, checks it for syntax errors, and re-formats it with clean indentation for readability. You can also minify JSON or validate whether a string is well-formed.
Is my JSON data sent to a server?
No. All parsing, formatting, and validation happens 100% in your browser using native JavaScript JSON methods. Your data never leaves your device.
What indentation options are available?
You can format JSON with 2-space, 4-space, or tab-based indentation.
Why am I getting an "Invalid JSON" error?
Common causes: missing or extra commas, unquoted property names, trailing commas, single quotes instead of double quotes, and unescaped special characters.
Can I use this to debug API responses?
Yes. Paste any raw JSON API response and click Format to see it with clean indentation for easy inspection.