Is this tool safe against XML External Entity (XXE) attacks?
Yes. DevHub uses safe client-side DOM parsing that completely ignores and disables external DTDs and entity expansion.
Formatters
Pretty-print and validate well-formed XML locally.
Add an input and run this tool to see the output.
Run AIOptional, bring your own key.
Add your own AI provider in AI settings to enable AI help for this tool. Nothing is sent until a key is configured.
XML Formatter Developer Guide
100% Client-Side & PrivateFormat XML documents into a readable tree while catching mismatched tags and missing root elements locally.
Key capabilities
- Pretty-prints XML documents with clean, hierarchical indentation
- Validates well-formed XML syntax and detects unclosed or mismatched tags
- Minification mode to strip comments and redundant whitespace
- Does not resolve external entity references (safe against XXE attacks)
Common use cases
- Formatting SOAP API responses, SAML assertions, and XML configuration files
- Beautifying SVG graphics code and Android layout XML files
- Inspecting sitemap.xml and RSS/Atom feeds for syntax errors
How to use XML Formatter
- Paste raw XML text into the input panel
- Inspect the beautifully indented and syntax-validated XML tree
- Copy the formatted XML or download it for your project