{ } JSON Formatter
Paste any JSON data and instantly format it with proper indentation, or minify it for production. Validates your JSON and highlights syntax errors.
How to Use the JSON Formatter
The JSON Formatter tool lets you instantly beautify, minify, and validate any JSON data directly in your browser — no installation needed. To use it, paste your raw or minified JSON into the left input panel. Click the Beautify button to format it with two-space indentation, making it easy to read and debug. Click Minify to strip all whitespace and produce compact JSON suitable for API payloads or production builds. The tool validates your input in real time: a green indicator means your JSON is syntactically correct, while a red error message points to the exact location of the problem, such as a trailing comma or a missing bracket. You can also click Sample to load a pre-built example and see the formatter in action. Once formatted, click Copy to copy the output to your clipboard. The JSON Formatter supports all standard JSON types: strings, numbers, booleans, nulls, arrays, and nested objects. It works entirely client-side, so your data never leaves your browser.
Frequently Asked Questions
What is a JSON Formatter?
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A JSON Formatter is a tool that takes raw or minified JSON text and reformats it with proper indentation and line breaks, making it easier for humans to read and debug. It may also validate the JSON and highlight any syntax errors.
What is the difference between beautify and minify in JSON?
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Beautifying (also called pretty-printing) adds indentation and newlines to make JSON human-readable. Minifying removes all unnecessary whitespace to produce the smallest possible file size, which is ideal for sending JSON over a network.
Why is my JSON invalid?
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Common JSON syntax errors include: trailing commas after the last item in an array or object, using single quotes instead of double quotes, missing commas between key-value pairs, unescaped special characters inside strings, or mismatched brackets and braces.
Is the JSON Formatter safe to use with sensitive data?
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Yes. This JSON Formatter runs entirely in your browser using JavaScript. Your JSON data is never sent to any server, stored, or logged. You can safely format JSON that contains passwords, API keys, or personal data.