Sitemap Split/Merger Tool
Paste one sitemap URL to split it into 10,000-URL chunks, or paste several to merge them into one deduplicated sitemap.
FAQ
Do I paste one sitemap URL or several?
Either — paste one URL per line. Paste exactly one URL and the tool splits it (if it's over 10,000 URLs, the sitemaps.org-recommended chunk size). Paste two or more URLs and the tool merges them into one deduplicated sitemap instead.
How does splitting work?
The sitemap's URLs are broken into files of up to 10,000 each, and every chunk is rendered as its own complete <urlset> XML document, separated by a clear "Sitemap N of M" header. If your sitemap has 10,000 URLs or fewer, it's returned as-is with a note that there was nothing to split.
How does merging handle duplicate URLs?
Every <loc> across all the sitemaps you paste is combined into one list, and duplicates (the same URL appearing in more than one sitemap) are kept only once in the merged result.