Developer Tools
JSON Formatter
Paste raw JSON and instantly format it into readable, indented code — or minify it back into a single line. Validates your JSON and highlights exactly where errors are, making it an essential tool for developers working with APIs and data files.
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Paste your JSON into the input box
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Click Format / Prettify to make it readable
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Or click Minify to compress it to one line
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Click Validate to check for errors
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Copy the result or download as a .json file
{ } JSON Formatter
Format, validate, and minify JSON instantly. Detects errors and highlights invalid JSON.
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💡 Pro Tips & Best Practices
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Use Format before sharing JSON with others — unformatted JSON is nearly impossible to read.
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Minify JSON for production use in web applications — smaller files mean faster load times.
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The Validate function pinpoints the exact line and character where a syntax error occurs.
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Common JSON errors: missing closing brackets, trailing commas, and unquoted property names.
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JSON keys must always be double-quoted strings — single quotes are not valid in JSON.
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Use this tool to quickly check API responses when building integrations or debugging.
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After formatting, use the CSV ↔ JSON Converter if you need to move data to a spreadsheet.