Sitemap index generator

Large sites that exceed 50,000 URLs or 50 MB per sitemap need a sitemap index. Paste your individual sitemap URLs below and download a valid sitemapindex.xml in one click.

Sitemap URLs (one per line)

Default lastmod date

Leave blank to omit lastmod from all entries.

Per-URL lastmod overrides (optional)

Format: URLYYYY-MM-DD, one per line.

Preview

Runs entirely in your browser. Nothing is uploaded.

How it works

STEP 1

Add your sitemaps

Enter one sitemap URL per line — e.g. https://example.com/sitemap-posts.xml — and an optional lastmod date for each.

STEP 2

Preview the XML

The sitemapindex.xml is generated instantly as you type. Each <sitemap> entry follows the sitemaps.org protocol.

STEP 3

Download and submit

Download the file, upload it to your server root, and submit the URL to Google Search Console.