XAML Beautifier

XAML Beautifier - Format and Beautify XAML Code Online

Our free XAML beautifier tool helps you format, beautify, and validate XAML documents instantly. Whether you're working with WPF, UWP, Xamarin.Forms, or other XAML-based applications, our beautifier makes your XAML code readable and properly structured with consistent indentation and formatting.

What is XAML Formatting?

XAML (eXtensible Application Markup Language) formatting is the process of organizing XAML code with proper indentation, line breaks, and spacing to make it human-readable. Well-formatted XAML is easier to read, debug, and maintain. Our tool automatically:

• Adds proper indentation - Nests elements and attributes with consistent spacing
• Inserts line breaks - Separates elements for better readability
• Validates syntax - Checks for XAML/XML structure errors
• Preserves content - Maintains all original data and attributes
• Controls attribute wrapping - Intelligently wraps long attribute lists

What is XAML?

XAML (eXtensible Application Markup Language) is a declarative XML-based markup language developed by Microsoft. It's used to define user interfaces in various Microsoft technologies including:

• WPF (Windows Presentation Foundation) - Desktop applications
• UWP (Universal Windows Platform) - Modern Windows apps
• Xamarin.Forms - Cross-platform mobile apps
• WinUI - Modern Windows UI framework
• Silverlight - Web applications (deprecated)

Key Features of Our XAML Beautifier

⚡ Real-time Formatting

Format your XAML instantly as you type. No need to click buttons - see the formatted result immediately in the output panel with automatic updates.

✅ XAML Validation

Our tool validates your XAML syntax and highlights any errors, helping you identify and fix issues quickly. XAML is XML-based, so it follows XML validation rules.

📁 File Upload Support

Upload XAML files directly from your computer. Supports files of any size and automatically processes them with proper formatting.

⚙️ Customizable Indentation

Control the indentation size (1-8 spaces) to match your project's coding style. Default is 4 spaces, which is standard for XAML formatting.

📋 Copy & Download

Copy formatted XAML to your clipboard or download it as a .xaml file for use in your projects.

🎨 Syntax Highlighting

Beautiful syntax highlighting makes it easy to distinguish between elements, attributes, and content in your XAML code.

Common Use Cases

WPF Application Development

Format XAML files for Windows Presentation Foundation applications. Proper formatting makes complex UI hierarchies much easier to understand and maintain.

UWP App Development

Beautify XAML code for Universal Windows Platform applications. Clean formatting helps with responsive design and adaptive UI development.

Xamarin.Forms Cross-Platform Development

Format XAML for cross-platform mobile applications. Consistent formatting across platforms improves code maintainability.

Code Review & Collaboration

Ensure consistent code formatting across team members. Well-formatted XAML makes code reviews faster and easier.

Legacy Code Cleanup

Beautify existing XAML files that may have inconsistent formatting or were generated by tools. Make legacy code more readable and maintainable.

XAML Formatting Best Practices

Consistent Indentation

Use 4 spaces for indentation consistently throughout your XAML document. This is the standard convention and makes nested elements easy to identify.

Proper Element Nesting

Ensure all XAML elements are properly nested and closed. Our validator will catch nesting errors and help you fix them.

Attribute Organization

Place commonly used attributes (like x:Name, x:Class) first, followed by layout properties, then styling properties. Our formatter helps organize attributes logically.

Meaningful Element Names

Use descriptive names for elements and follow naming conventions (e.g., ButtonName for buttons, TextBoxName for text boxes).

Resource Organization

Keep resources (styles, templates, brushes) organized in ResourceDictionary sections. Proper formatting makes resource management easier.

XAML Structure Elements

Elements

XAML elements represent UI controls and layout containers. Common elements include:

• Layout Containers: Grid, StackPanel, Canvas, WrapPanel
• Controls: Button, TextBox, Label, Image
• Data Controls: ListBox, DataGrid, ItemsControl
• Panels: DockPanel, UniformGrid, RelativePanel

Attributes

XAML attributes define properties, events, and behaviors:

• x:Name - Element identifier for code-behind access
• x:Class - Code-behind class association
• xmlns - XML namespace declarations
• Properties - Control properties like Width, Height, Content

Namespaces

XAML uses XML namespaces to define element and attribute scope:

• Default namespace - WPF/UWP core elements
• x: namespace - XAML language features
• Custom namespaces - User-defined controls and types

Tips for Using Our XAML Beautifier

1. Start with sample data - Click the "Sample" button to see how the beautifier works with example XAML
2. Adjust indent size - Customize the indentation (1-8 spaces) to match your project's style guide
3. Upload large files - For large XAML files, use the upload feature instead of copy-pasting
4. Check validation errors - If formatting fails, look for validation errors in the output
5. Use copy feature - Copy the formatted result to your clipboard for easy pasting into Visual Studio
6. Download results - Save formatted XAML files directly to your computer
7. Format before commit - Format XAML files before committing to version control for consistency

Browser Compatibility

Our XAML beautifier works in all modern browsers including Chrome, Firefox, Safari, and Edge. No plugins or additional software required - everything runs in your browser.

Privacy & Security

Your XAML data is processed entirely in your browser. We don't store, log, or transmit your XAML content to our servers. Your data remains private and secure.