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JSON formatter/validator

Format, validate and minify JSON, with clear error messages when the JSON is invalid. Runs entirely in your browser.

JSON Formatter

How to use JSON formatter/validator

Enter your details in the tool above and press the main button to get your result. You can copy text results or download file results. Most tools work entirely in your browser, so your files and inputs are not uploaded anywhere, except where the tool page names a public API it calls.

Related tools: JSON to CSV, CSV to JSON, XML to JSON / JSON to XML, YAML to JSON / JSON to YAML.