Format and beautify JSON. Pretty print with indentation. Validate and fix JSON syntax.
Format and beautify JSON. Pretty print with indentation. Validate and fix JSON syntax.
API response debugging: Paste a minified API response to see its structure clearly. Useful when debugging REST APIs or inspecting network responses.
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Using single quotes in JSON (valid in JavaScript but not in JSON)
JSON requires double quotes for all strings and keys. Use: {"key": "value"} not {'key': 'value'}
Including trailing commas after the last item in arrays or objects
JSON does not allow trailing commas. Remove the comma after the last element: [1, 2, 3] not [1, 2, 3,]
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OntwikkeltoolsUse the buttons below to format, minify or validate JSON