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XML Highlighter

Paste XML and get syntax-highlighted output with line numbers, formatting, and copyable HTML.

Last updated: May 28, 2026

Client-Side Processing
Input Data Stays on Device
Instant Local Execution

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What is XML Highlighter?

XML Highlighter turns raw XML into readable, color-coded code. It highlights element names, attributes, attribute values, comments, CDATA blocks, and text content. You can preview the highlighted code, copy the generated HTML, or copy the formatted XML for documentation, support tickets, blog posts, and developer notes.

How to Use XML Highlighter

1

Paste XML into the input panel.

2

Choose dark or light theme.

3

Leave formatting enabled to normalize indentation before highlighting.

4

Toggle line numbers if needed.

5

Copy the highlighted HTML or download it as an HTML file.

Common Use Cases

  • Preparing XML examples for documentation.
  • Making API responses easier to inspect.
  • Sharing highlighted SOAP or RSS snippets in support tickets.
  • Creating readable XML examples for tutorials.

Example Input and Output

An XML product record is formatted and highlighted as HTML.

XML input
<product id="A100"><name>Keyboard</name><price>89.99</price></product>
Highlighted HTML
<pre><code><span>...</span></code></pre>

Privacy

Your XML is parsed and highlighted locally in your browser. It is never uploaded to WebToolsPlanet.

Frequently Asked Questions

Does this validate XML first?
Yes. The tool parses the XML before highlighting and shows an error if the document is not well formed.
Can I copy the highlighted code?
Yes. You can copy the generated HTML or download a standalone HTML file containing the highlighted XML.
Can I keep my original formatting?
Yes. Turn off "Format before highlighting" to preserve your original line breaks and indentation as much as possible.
Is my XML uploaded?
No. Highlighting and formatting run entirely in your browser.

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Part of a Collection

Collection
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