AThe Article Files

XML Sitemap Generator

Turn a list of URLs into a valid, downloadable XML sitemap.

One URL per line

What this tool does

The XML Sitemap Generator converts a list of URLs into a standards-compliant XML sitemap. You can optionally add last modified dates, change frequency, and priority values, then download the result as a .xml file.

Sitemaps help search engines discover your pages, especially on new or large sites. Manually writing XML is tedious and error-prone — a single unescaped ampersand breaks the file. This tool escapes values and validates URLs for you.

Invalid URLs are reported and skipped rather than silently breaking your sitemap, so you can fix them and regenerate.

How to use it

  1. Paste your URLs, one per line.
  2. Optionally add last modified date, change frequency, and priority.
  3. Review the validation errors and the count of valid URLs.
  4. Download the XML or copy it, then submit it in your search console.

How it works

  • Each URL is validated to start with http:// or https://. Duplicates are removed and invalid URLs are skipped with an error message.
  • XML entities (&, <, >, ", ') are escaped so the output remains well-formed.
  • Optional lastmod, changefreq, and priority are included per URL when provided and valid.

Example

Three URLs with changefreq weekly and priority 0.8 produce a urlset with three url entries, each carrying loc, changefreq, and priority.

Common questions

What is the sitemap size limit?
A single sitemap file should stay under 50,000 URLs and 50MB uncompressed. Beyond that, split into multiple sitemaps.
Should priority be 1.0?
Priority is a relative hint, not a ranking factor. Most sites use 0.5–1.0 sparingly; many SEOs recommend omitting it entirely.
Do I need lastmod on every URL?
Only include lastmod when you can keep it accurate. Stale or wrong dates are worse than no dates.

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