About this utility
How to use XML Formatter & Validator
Validate XML syntax and format its element structure without fetching external entities.
What to provide
Paste XML or drop an .xml file. DTD and ENTITY declarations are rejected.
- Paste, type, or drag and drop a supported text file into the input area.
- Choose the options that match your intended result.
- Select “Run tool” or press Ctrl/Command + Enter, then copy, download, or move the result back into the first input for another pass.
What the result means
Validated XML with readable indentation.
Privacy and safety
This utility is loaded as browser code and processes your input only in this tab. OmniCastConverter has no upload endpoint and never stores your content, filenames, tokens, or secrets. Generated markup and code are shown as inert text and are never executed.
Limitations
- Mixed-content whitespace can be significant; inspect prose-heavy XML after formatting.
Try the included example
Select “Load example” at any time to restore this tested sample.
<catalog><item id="1">Book</item><item id="2">Pen</item></catalog>