JSON Formatter
Format and beautify JSON data with proper indentation and spacing. This tool takes minified or messy JSON and makes it readable. You can choose indentation levels (2 or 4 spaces) and the tool will format your JSON accordingly.
When to use this tool
You want to read or review minified JSON payloads more easily.
You need consistent formatting for diffs or code reviews.
Examples
Minified to formatted
Input
{"id":42,"roles":["admin","editor"],"enabled":true}Output
{
"id": 42,
"roles": [
"admin",
"editor"
],
"enabled": true
}Choose 2 or 4 spaces depending on your style guide.
Developer use cases
Pretty-print API responses to spot nested values quickly.
Normalize JSON before committing configuration files.
Common mistakes to avoid
Formatting invalid JSON without fixing syntax errors first.
Assuming formatting changes the data (it only changes whitespace).
Format and behavior notes
Formatting preserves key order as it appears in the input.
Use minify for compact output and format for readability.
Related Tools
Frequently Asked Questions
How do I format JSON?
Paste your JSON data into the editor and click the Format button. The JSON will be automatically formatted with proper indentation.
Can I choose the indentation level?
Yes, you can choose between 2 spaces or 4 spaces for indentation. The default is 2 spaces.
What if my JSON is invalid?
The formatter will first validate your JSON. If there are syntax errors, you must fix them before the JSON can be formatted.