Code Formatters & ValidatorsFree Tool

Highlight XML Syntax

Provided byOnline XML Toolsonlinexmltools.com

Colour-codes XML syntax for easier inspection.

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About this tool

What Highlight XML Syntax does

Highlight XML Syntax is a free online utility that colour-codes XML code to improve readability and simplify inspection. Users paste their XML into the interface, and the tool applies distinct colours to tags, attributes, and content nodes, making complex or lengthy structures easier to review and debug without requiring local software. The service is designed for developers, data analysts, and technical writers who need to verify XML files quickly and reliably.

Step by step

How to use the Online XML Tools Highlight XML Syntax

  1. 1

    Paste your XML code into the input field on the Highlight XML Syntax page

  2. 2

    The tool automatically colour-codes tags, attributes, and values as you type or after pasting

  3. 3

    Optional: enable line numbers, highlight bracket pairs, or mark the current line via the Highlighter Options

  4. 4

    Copy the highlighted output to your clipboard, download it as a file, or export it to Pastebin

  5. 5

    Use the 'Use Special Symbols' setting to display newlines and tabs with visual markers

Is it right for you

Best for

Developers, data analysts, and technical writers who need to inspect, review, or debug XML files quickly without installing specialized software.

Limitations

  • No unit switching or format conversion capabilities
  • Primarily designed for visual highlighting rather than structural validation
  • Results are estimates based on syntax colouring and do not replace a full XML parser
Questions

Highlight XML Syntax FAQ

Is the XML highlighter free to use?
Yes, the tool is free with no ads, popups, or registration required.
Can I highlight XML that contains special characters like newlines and tabs?
Yes, there is an option to use special symbols for newlines and tabs to make them visible in the output.
Does the tool validate the XML structure or check for errors?
No, the tool only colour-codes the syntax for readability; it does not perform structural validation or error checking.
How can I share or save the highlighted XML?
You can copy the result to your clipboard, download it as a file, or export it directly to Pastebin from the interface.
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Online XML Tools Highlight XML Syntax — Free Online Tool | The Free Tools Directory