JSON Formatter — Format, Validate & Beautify JSON Online
Free online JSON formatter and validator to format, minify, and beautify JSON data. Parse JSON with an interactive tree view, search through keys, and validate syntax instantly. Perfect for developers debugging JSON APIs and configuration files.
Indent Size
View Mode
Sort Keys
Alphabetically sort object keys.
Search
Example Results
Output will appear here
How to Use the JSON Formatter
Paste your JSON
Paste any JSON string into the input area. The tool validates and formats it instantly.
Choose a view mode
Switch between Formatted (pretty-print), Tree View (interactive), or Minified (compact).
Adjust options
Customize indent size, enable sorting keys, or use the search bar to find specific keys and values.
Copy or explore
Copy the formatted or minified JSON, or explore the tree view by expanding and collapsing nodes.
Frequently Asked Questions
The tool highlights syntax errors and indicates the line number where the issue was found.
Yes. Use the search bar to find matching keys or values throughout the entire JSON structure.
Tree View presents JSON as an interactive collapsible tree, making it easier to navigate large nested structures.
Yes. Enable Sort Keys to reorder all object keys alphabetically in the output.
Example Results
Try this sample text
{"name":"John","age":30,"city":"New York"}
What you'll see
{ "name": "John", "age": 30, "city": "New York" }
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