XML Comment Extractor

Walks an XML document and collects the text of every <!-- --> comment, in the order they appear, useful for reviewing notes left in a config or template file without hunting through markup. A free online tool from Staaarter, right in your browser.

Runs locallyUpdated 2026-07-23

Overview

Introduction

Comments in a large config or template file are easy to miss when scanning raw markup.

This tool pulls every comment's text out on its own.

What Is XML Comment Extractor?

An extraction tool that walks the parsed document.

It collects the text of every comment node, in document order.

How XML Comment Extractor Works

The document is parsed, with comments preserved as their own node type by this category's parser.

It's then walked recursively, collecting each comment's trimmed text.

When To Use XML Comment Extractor

Use it to review every note or explanation left in a config, template, or generated file without scanning raw markup.

It's also a good first step before running XML Comment Remover, so you can confirm nothing worth keeping gets deleted.

Often used alongside XML Comment Remover and XML Comment Replacer.

Features

Advantages

  • Surfaces every comment regardless of nesting depth.
  • Runs entirely client-side.
  • Keeps document order, so notes read in the same sequence they appear in the file.

Limitations

  • Only comment text is extracted, not its surrounding context, use the XML Visualizer if you need to see exactly where each comment sits in the structure.
  • The divider between comments is a plain text separator, not a structural marker, so very long comments could visually blend if they themselves contain that separator text.

Examples

Extracting two comments

Input

<config><!-- retry count --><retries>3</retries><!-- timeout in ms --><timeout>5000</timeout></config>

Output

retry count
---
timeout in ms

Each comment's text is listed, separated by a divider.

Best Practices & Notes

Best Practices

  • Run this when reviewing an unfamiliar config file, comments often explain intent that isn't obvious from tag names alone.
  • Do this before deleting or archiving an old config, in case a comment documents a non-obvious workaround.
  • Follow up with XML Comment Remover once you've captured anything worth keeping elsewhere.

Developer Notes

Comment collection is a single recursive walk filtering for the `comment` node type this category's parser already distinguishes from text, elements, CDATA, and processing instructions.

XML Comment Extractor Use Cases

  • Reviewing every note left in a config or template file
  • Auditing a generated file for leftover debug comments
  • Archiving comment notes before stripping them for a production build

Common Mistakes

  • Expecting processing instructions (<?...?>) to be included, only true comments are collected.
  • Assuming an empty result means the extraction failed, it just means the document has no comments.

Tips

  • Pair with XML Comment Remover once you've reviewed the notes and want a clean copy.
  • Check the FAQ above if the output doesn't look like what you expected.

References

Frequently Asked Questions