SitemapKit

Free XML Sitemap Diff Tool

Paste an older and newer URL sitemap to find added pages, missing URLs, and changes to lastmod, changefreq, or priority. Your XML never leaves this browser.

Both files stay in your browser. This version compares URL sitemaps, not sitemap index files.

What this comparison catches

A sitemap diff is useful before and after a migration, CMS release, or large publishing change. Treat the first file as the baseline and the second as the new version. Removed URLs deserve the closest review because an accidental omission can reduce how often Google rediscovers those pages.

The tool matches exact <loc> values and reports metadata changes separately. It does not treat a changed lastmod as a new URL. Validate either input first with the XML sitemap checker, or use the sitemap extractor when you have a sitemap index.

How to compare two sitemaps

  1. Save the pre-change URL sitemap as your before copy.
  2. Paste the new sitemap into the after field and run the comparison.
  3. Review removed URLs and metadata changes, then download the CSV for your release record.

Related sitemap tools

Continue your sitemap audit with the next tool in your workflow.

Find a website's sitemapDiscover the sitemap files published by any domain.Validate an XML sitemapCheck XML structure, limits, response time, and metadata coverage.Extract sitemap URLsTurn an XML sitemap into a downloadable CSV, TXT, or JSON list.Generate sitemap.xmlTurn a URL list into a valid, downloadable XML sitemap in your browser.Split a large sitemapCreate protocol-safe XML parts and the matching sitemap index locally.Map a sitemap indexFollow nested sitemap files and inspect the complete URL structure.Analyze robots.txt rulesReview crawler directives and sitemap declarations by user-agent.