Formatting & Validation

XML Formatter and Validator

Format XML documents and identify structural errors.

Processed locally in your browser

Indent

XML input

Input size: 0 B. XML stays in this browser tab. Drop an XML file here.

XML output · 0 B

Format, minify, or validate XML to see the result.

XML input

Input size: 0 B. XML stays in this browser tab. Drop an XML file here.

Format declarations, namespaces, attributes, comments, and CDATA without uploading them.

Is XML uploaded?

No. Parsing, formatting, file reading, and downloads happen locally in this browser tab.

Are DTDs and external entities supported?

No. DOCTYPE and entity declarations are rejected to prevent unsafe external-entity behavior.

Format, minify, and validate XML locally while preserving declarations, namespaces, attributes, comments, CDATA, and mixed text content.

Formatting & Validation

Format XML documents and identify structural errors.

Processed locally in your browser

Indent

XML input

Input size: 0 B. XML stays in this browser tab. Drop an XML file here.

Format, minify, or validate XML to see the result.

XML input

Input size: 0 B. XML stays in this browser tab. Drop an XML file here.

Format declarations, namespaces, attributes, comments, and CDATA without uploading them.

Is XML uploaded?

No. Parsing, formatting, file reading, and downloads happen locally in this browser tab.

Are DTDs and external entities supported?

No. DOCTYPE and entity declarations are rejected to prevent unsafe external-entity behavior.

Format, minify, and validate XML locally while preserving declarations, namespaces, attributes, comments, CDATA, and mixed text content.