JSON Formatter
Format, validate and beautify JSON instantly with syntax highlighting.
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How it works
The JSON Formatter parses your raw JSON, validates its structure, and re-serializes it with consistent, readable indentation. If the JSON is malformed, it surfaces the exact parse error so you can find and fix the problem quickly.
Frequently asked questions
Does this tool store or send my JSON anywhere?
No. Formatting happens entirely in your browser; your data never leaves your device.
What happens if my JSON is invalid?
You'll see the exact parser error, including the position of the problem, so you can fix it fast.