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XML Formatter & Validator
Find malformed XML and produce clean, readable output locally.
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Frequently asked questions
Is XML Formatter & Validator free?
Yes. The core workflow is free, needs no account, and runs in your browser.
Does blackccbox upload my data?
No. The tool processes the input on this device. Network requests only load the application libraries.
What should I know before using the result?
DTD and external network resources are not resolved.