JSON Prettifier
Prettify JSON with clean 2-space indentation instantly. Free online JSON formatter tool — beautify, validate and read un
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How to Use JSON Prettifier
- Paste your JSON: Paste minified or unformatted JSON into the input box. You can use the Example button to load sample data.
- Click Prettify: Press the Prettify JSON button. Your JSON is validated and reformatted with 2-space indentation.
- Copy the result: Click Copy to save the formatted JSON to your clipboard and use it in your project.
About JSON Prettifier
JSON Prettifier is a free online formatter that turns minified or messy JSON into clean, readable, indented code.
- 2-Space Indentation: Every nested level gets a clean 2-space indent for maximum readability.
- Built-in Validation: The tool parses your input first, so invalid JSON shows a clear error instead of broken output.
- One-Click Copy: Copy the formatted JSON with a single click and use it anywhere.
Perfect for developers inspecting API responses, debugging configs, or preparing readable JSON for documentation.
Frequently Asked Questions
What is a JSON Prettifier?
A JSON Prettifier formats minified or messy JSON into a readable, indented structure. It adds line breaks and 2-space indentation so nested data becomes easy to scan.
Does this tool also validate JSON?
Yes. The tool parses your input first — if the JSON has syntax errors, you will see an error message instead of formatted output.
Is my JSON data uploaded to a server?
No. All formatting happens locally in your browser. Your data never leaves your device.