Sitemap Index Generator
Paste your sitemap URLs below, one per line, and get a ready-to-upload sitemap index file.
FAQ
When do I need a sitemap index instead of a single sitemap?
When your site has more than 50,000 URLs or your sitemap file would exceed 50MB uncompressed — the sitemap protocol caps a single file at those limits, so large sites split their URLs across several sitemaps and reference them all from one index file.
What format should each line be in?
One absolute sitemap URL per line, e.g. https://example.com/sitemap-posts.xml. Each line is validated as a real URL — anything else is rejected with the line number so you can fix it.
Where do I submit the generated sitemap index?
Upload it to your site and either submit its URL directly in Google Search Console / Bing Webmaster Tools, or reference it with a `Sitemap:` line in your robots.txt so crawlers discover it automatically.