JSON Formatter & Validator
Format, validate, minify, sort, and repair JSON data. Includes tree view, auto-save, and structure analysis.
Formatted JSON will appear here...Frequently Asked Questions
What does the JSON formatter do?
The JSON formatter takes raw or minified JSON and reformats it with proper indentation and line breaks, making it easy to read and debug. It also validates the JSON syntax and shows the exact error location if the JSON is invalid.
What indentation options are available?
You can choose between 2-space and 4-space indentation. You can also minify the JSON to remove all whitespace, which is useful for reducing payload size in API calls.
What stats does the analyzer show?
The tool shows total number of keys, maximum nesting depth, counts of arrays and objects, and the data size in bytes/KB/MB. This helps you understand the structure and complexity of your JSON data.
Can I format invalid JSON?
The formatter will show a specific error message with the location of the syntax error. Common issues include trailing commas, missing quotes on keys, and single quotes instead of double quotes. Fix the error and the formatter will update in real-time.
Is there a size limit?
Since formatting happens entirely in your browser, the limit depends on your device's memory. The formatter handles JSON files of several megabytes without issues.
Can I upload a JSON file?
Yes. Click the Upload button to select a .json or .txt file from your device. The file contents will be loaded and formatted automatically.