JSON Formatter
Format, validate, and minify JSON data
Paste JSON into the input area, or click Sample to load an example object.
Click Validate to confirm whether the JSON syntax is valid before using it in code or API requests.
Click Format JSON to pretty-print the data with your selected indentation style.
Use Minify when you need compact JSON for production, logs, or API payloads.
If validation fails, check the reported line and column to fix missing commas, quotes, braces, or brackets.
Copy the result or download it as a .json file when you are done.
Pro Tips
- Use 2 spaces for most JavaScript and API examples, and 4 spaces when you want more visual spacing.
- Run Validate before copying JSON into config files or request bodies.
- Use Minify only after you have verified that the formatted JSON is correct.
- Schema validation is useful for checking required fields and basic value types in API payloads.
Why Use This Tool?
This formatter is useful when debugging API responses, checking JSON config files, preparing examples for documentation, or shrinking payloads before production use. Because it works in the browser, it is practical for sensitive snippets that should not be pasted into server-side tools.
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