100tools

XML Formatter

Validate, indent or compact XML without uploading it.

Text & DataFreeLocal

Validates XML and preserves attributes, comments, CDATA and mixed content. DTD and custom entities are unsupported.

Processed on your device. No upload or account needed.

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Frequently Asked Questions

Do I need to log in or upload my data?

No. Processing runs in your browser; input and files are not sent to a backend. Loading the website and program assets requires a connection.

Which formats and rules are supported?

Attributes, comments, CDATA and mixed content are preserved. DTD and custom entities are unsupported.