HTML/XML Formatter Online
The best free HTML formatter and beautifier. Perfectly indent XML and HTML markup instantly for better readability and debugging.
Minified / Messy Code
Beautified Output
How to Use HTML/XML Formatter
- 1Copy your unformatted, minified, or messy HTML/XML from your source file.
- 2Paste the code into the left-hand editor panel labeled 'Messy Source'.
- 3Click the 'Beautify Markup Now' button to run the structural analysis.
- 4Review the cleaned, indented output in the right-hand panel.
- 5Copy the formatted result back into your development environment.
Key Features
- Smart Nesting Detection: Automatically calculates indentation levels for parent and child tags.
- Standard Indentation: Applies a consistent 4-space tab rule for professional readability.
- Multi-Format Support: Works perfectly for both modern HTML5 and strictly structured XML documents.
- Instant Preview: Real-time beautification with a scrollable code terminal for large documents.
- Security Focused: 100% browser-side processing; your sensitive markup never touches a server.