JSON Formatter / Beautifier
Paste JSON below to format (beautify) or minify it. Copy the result with one click. Everything runs in your browser — nothing is sent to a server.
Formatter controls
Tip: press Ctrl+Enter (or ⌘+Enter) in the input to format.
Frequently asked questions
Is this JSON formatter free?
Yes. The Formattly JSON Formatter is free to use with no signup required.
Does my JSON leave my browser?
No. Formatting and minifying run entirely in your browser with JavaScript. Your JSON is not uploaded to a server.
Can I minify JSON as well as beautify it?
Yes. Use Format / Beautify for readable indented JSON, or Minify for a compact single-line string.
What if my JSON is invalid?
The tool will show an error message describing the parse problem so you can fix the input and try again.