Free Sitemap Splitter & Merger

Our sitemap splitter and merger transforms sitemap XML you already have. Split mode takes one large urlset and chunks it into 50,000-URL pieces, the per-file limit that sitemaps.org enforces. The output is a ZIP containing sitemap-1.xml through sitemap-N.xml plus a sitemap-index.xml that points at them with absolute URLs. Merge mode takes two or more urlset XML inputs, combines them, removes duplicates case-insensitively, and emits one merged urlset XML.

The tool is pure client side. Both modes parse the XML you paste, never fetch a URL, and never send your data anywhere. The Splitter accepts a urlset and asks you for the public base URL where the chunk files will be hosted so the parent index points at absolute URLs (which is what Google, Bing, and Yandex require).

For SEOs

Our tool keeps you within the sitemap-protocol limits, so you can:

• Break a giant export into compliant chunks before submitting
• Merge per-section sitemaps from different teams into one clean file
• Spot duplicate URLs across sitemaps you thought were disjoint

For Developers

Our tool saves you writing chunk and dedupe logic, so you can:

• Produce a deploy-ready ZIP for a migration in one click
• Combine sitemaps from multiple CMSes during a consolidation
• Hand off a clean, deduplicated XML to ops without scripts

Why Use Our Sitemap Splitter & Merger

• Pure client side: Your XML never leaves your browser. We parse and rebuild it locally.
• Honest dedupe: Merge removes duplicates on loc (case-insensitive); the first occurrence's lastmod wins. The dedupe count is surfaced so you can see how much overlap there was.
• Standards compliant output: Split produces a sitemap-index plus 50,000-URL chunks; merge produces a single urlset under the 50,000 cap.