Sitemap Change Detector
Paste an old sitemap and a new sitemap to catch added, removed, and unchanged URLs before a site update goes live.
See what changed between two sitemaps
Before a site update goes live, it helps to know exactly which URLs are appearing, disappearing, or staying put — an accidentally dropped page or an unexpected new one can mean a broken link or a deindexing risk. This detector compares an old sitemap against a new one and reports the added, removed, and unchanged URLs at a glance.
That diff is a fast sanity check for migrations, redesigns, and CMS changes: confirm the pages you meant to keep are still there, that removed URLs have redirects, and that new ones are intentional. It turns a risky guess into a reviewable list.
Private and instant
Both sitemaps are compared entirely in your browser — you paste the contents, nothing is fetched — so even a full URL inventory of a private or client site stays on your device.
Frequently Asked Questions
What does a sitemap change detector do?
It compares an old list of sitemap URLs against a new list and reports URLs that were added, removed, or kept.
Can I paste full XML sitemaps?
Yes. The tool extracts URL-looking values from XML, plain text, CSV, or copied lists.
Why check sitemap changes before launch?
Unexpected removals can deindex important pages, while unexpected additions can expose drafts or thin pages.
Is my sitemap uploaded?
No. Comparison happens locally in your browser.
Need a migration checked before launch? Let us review it.