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Validate a JSON document against a JSON Schema and see exactly which fields fail and why.
Runs entirely in your browser, nothing is uploadedFormat, minify, and validate JSON with a clear error message when it isn’t valid.
Open toolCheck whether a JSON document is well-formed, with a clear error message when it isn’t.
Open toolCheck that XML is well-formed and re-indent it, with a line-and-column error if it isn’t.
Open tool