XML Formatter Online - Beautify, Validate & Minify XML Documents

Free Online XML Formatter and Validator. Beautify, minify, and validate XML code. Features syntax highlighting, indentation control, and error detection.

XML Input

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Ln 1, Col 1
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Formatted Outputs

No formatted outputs yet. Click "Format XML" or "Minify XML" to generate your first version.

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Professional XML Formatter & Validator - Online XML Beautification Tool

Format, beautify, and validate XML documents with our professional online XML formatter. Features intelligent indentation, syntax highlighting, error detection, and minification for clean, readable XML code.

Key Features of OJF

Everything you need to manage your data

XML Formatting

  • Intelligent XML beautification with proper indentation and line breaks
  • Customizable formatting options: 2-space, 4-space, or tab indentation
  • Syntax highlighting with color-coded elements, attributes, and content
  • Real-time XML validation with detailed error reporting and line number references
  • XML minification for production use with whitespace and comment removal
  • Preserve or remove XML comments and processing instructions as needed
  • Large XML file handling up to 15MB with efficient processing algorithms

XML Validation

  • Comprehensive XML syntax validation with W3C standards compliance
  • Well-formedness checking for proper element nesting and closing tags
  • Character encoding validation and UTF-8 compliance verification
  • Namespace declaration validation and prefix resolution checking
  • CDATA section validation with proper content escaping verification
  • Processing instruction validation for XML version and encoding declarations
  • Detailed error messages with precise line and column location information

XML Minimize

  • Minimize XML by removing unnecessary whitespace, line breaks, and indentation
  • Supports XML input via direct paste or URL-based fetching
  • Reduces XML file size for faster transmission and improved performance
  • Preserves XML structure and data integrity during minimization
  • One-click XML minification for quick optimization workflows
  • Optimized output suitable for production environments and deployments
  • Helps reduce bandwidth usage in APIs and data exchange systems

Master XML Formatting - Complete Guide to XML Document Beautification

1

Upload your XML file, paste XML content, or fetch XML from a URL into the formatter

2

Review any validation errors or warnings highlighted by the real-time XML validator

3

Choose your preferred formatting style: indentation type, spacing, and comment handling

4

Click 'Format XML' to beautify the document with proper indentation and structure

5

Use 'Minify XML' to compress the document for production use by removing whitespace

6

Review the formatted output with syntax highlighting and proper element alignment

7

Download the formatted XML file or copy the result for use in your projects

8

Save formatting preferences as templates for consistent styling across XML documents

Why Choose Us?

Feature
Online JSON Formatt(OJF)
Other Tools
Real-time validationComprehensive W3C standards validationBasic or no validation
Large file handlingUp to 15MB with efficient processing1-5MB typical limit
Formatting customizationExtensive indentation and style optionsFixed formatting style
Syntax highlightingAdvanced color-coded highlightingBasic or no highlighting
Error reportingDetailed line-by-line error locationGeneric error messages
Input flexibilityFile, URL, and text input supportText input only
Privacy protectionLocal processing without server uploadsServer-based processing

Frequently Asked Questions