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Free ToolLarge-site SEOClient-side

Sitemap Builder & Splitter

Generate valid, chunked sitemap files and a sitemap index in your browser.

50k URL cap support50 MB checksZIP download
Split safely for large sites
Ship updates faster
Keep indexing cleaner

Add URLs

URL Governance
Defaults
CSV row values override these defaults.
Splitting & Limits
Hard-capped at 50,000 URLs and 50 MB per part.
Index Base URL
Leave blank to reference filenames only.
Build
Debug & Tests

Who is this for?

Fast-changing sites

Great for ecommerce, marketplaces, news, and large content inventories.

Migrations

Useful when replatforming or reindexing a large set of URLs.

Headless teams

Helpful when you need more control than a plugin gives you.

How it works

  1. Paste URLs or upload a CSV.
  2. Choose governance rules and defaults.
  3. Split into compliant sitemap parts, with optional gzip.
  4. Download a ZIP with the index and all parts.
Tip: host the ZIP contents in a sitemaps folder and submit the index in Search Console.

Continue in Postly

Use Postly to publish new pages, coordinate updates, and keep your workflow in one place.

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