HTML Prettifier: Format & Beautify HTML Code [2025]

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Transform messy HTML into clean, readable code. Features syntax validation, attribute sorting, and proper indentation for better code organization.

✓ Syntax Validation✓ Attribute Sorting✓ Smart Indentation

Formatting Features

Basic Formatting

  • •

    Smart Indentation

    Proper nesting and spacing

  • •

    Tag Formatting

    Consistent tag casing

  • •

    Line Breaks

    Proper element spacing

Advanced Options

  • •

    Syntax Validation

    Error checking and validation

  • •

    Attribute Organization

    Sort attributes alphabetically

  • •

    Tag Case Conversion

    Standardize tag casing

Common Use Cases

Development

  • • Code readability
  • • Template formatting
  • • Code review
  • • Documentation

Maintenance

  • • Legacy cleanup
  • • Style standardization
  • • Code refactoring
  • • Team standards

Learning

  • • Code analysis
  • • Structure study
  • • Tag organization
  • • HTML understanding

Frequently Asked Questions

Why format HTML?

Properly formatted HTML improves code readability, makes maintenance easier, and helps identify structural issues. It's essential for team collaboration and code review.

What is attribute sorting?

Attribute sorting arranges HTML attributes alphabetically within tags, creating consistent ordering that makes attributes easier to find and maintain.

How does syntax validation help?

Syntax validation catches common HTML errors, ensuring your code is well-formed and follows HTML standards before being used in production.

Will formatting affect functionality?

No, proper HTML formatting only changes the code's appearance, not its functionality. The rendered output remains the same.

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