About XML Formatter
Product Documentation, Architecture & Offline Privacy Verification
What It Does
Format, indent, and validate XML documents with zero external entity resolution (XXE prevention). Zero uploads.
How It Works
Key Features
- Offline & Secure: Zero external entity resolution (XXE prevention). Zero uploads. Your XML stays strictly in your browser.
- CDATA & Namespace Safe: Accurately parses namespaces, attributes, mixed content, and complex CDATA blocks without destruction.
- Fast Beautification: Instantly indent nested XML elements with customizable spacing (2-spaces, 4-spaces, or tabs).
Limitations & Compatibility
Frequently Asked Questions
Does this tool execute or validate XML schemas?
No. This is strictly a formatting and beautification utility. It treats your XML as text to guarantee security, meaning it will not load external resources (XXE), execute embedded scripts, or resolve remote Document Type Definitions (DTDs).
Are my XML files uploaded to a server?
Absolutely not. 100% of the XML processing happens entirely inside your local browser. Your data is never transmitted or saved remotely, ensuring strict privacy for your data.
Will it preserve CDATA and comments?
Yes! The formatter recognizes standard XML structures, including CDATA blocks, processing instructions, and comments, and preserves them securely without modifying their internal content.
Can I format large XML files?
Yes, you can format XML files up to 5MB directly in your browser. Since it operates locally, you do not have to wait for large uploads or downloads.
Ready to use XML Formatter?
100% private, instant offline processing directly in your browser with zero data retention.
