How many URLs can one sitemap hold?

50,000 URLs and 50 MB uncompressed per file. Past either limit you need several files plus a sitemap index. This tool does the split for you.

Where do I put sitemap.xml?

In your site root (https://example.com/sitemap.xml) or any path on the same host, then submit it in Google Search Console and Bing Webmaster Tools, or add a Sitemap: line to robots.txt.

Do changefreq and priority matter?

Google has said it ignores both. They are harmless and valid, so they are optional here. A truthful lastmod is the only date field that is useful.

What format should lastmod have?

A W3C date: 2026-10-26 or a full date and time like 2026-10-26T09:30:00+02:00. The tool rejects impossible dates such as 2026-02-30.

Why were some of my URLs skipped?

Lines that are not full http(s) addresses, addresses over 2,048 characters, and URLs on a different host than the first one are skipped; each is listed under Checks with its line number.

Are special characters handled?

Yes. & ' " are escaped for XML, and non-ASCII characters in addresses are percent-encoded the way browsers do it.

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Free webmaster tool

Sitemap.xml generator

Paste one URL per line and download a valid sitemap.xml. The tool escapes special characters, removes duplicates, keeps URLs to a single host, and splits the list into several files with a sitemap index when you pass 50,000 URLs or 50 MB. Nothing is uploaded.

Your URLs (one per line)

After the address you can add, separated by spaces: a date (2026-10-26), a change frequency (weekly), a priority (0.8), img=https://… for an image, or alt=fr:https://… for another language version. Lines starting with # are ignored.

Defaults for lines that do not set their own

Last modified (lastmod)

Change frequency

Priority (0 to 1)

Options

Remove duplicate URLsSkip URLs on a different host than the first one

Split into several files above this many URLs

The sitemap limit is 50,000 URLs or 50 MB per file. Lower it only to test.

Where the files will be uploaded (for the index)

Result

4 URLs in 1 file(s), 540 B. 1 duplicates removed. 1 lines skipped.

File: sitemap.xml (4 URLs, 540 B)

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url>
    <loc>https://example.com/</loc>
  </url>
  <url>
    <loc>https://example.com/about</loc>
    <lastmod>2026-10-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://example.com/blog/hello-world</loc>
    <lastmod>2026-10-20</lastmod>
    <changefreq>weekly</changefreq>
  </url>
  <url>
    <loc>https://example.com/products?id=1&amp;color=red</loc>
  </url>
</urlset>

Upload it as sitemap.xml in your site root, then submit it in Google Search Console and Bing Webmaster Tools, or add a Sitemap: line to robots.txt.

Checks

CheckLine 6: a different host than the first URL, skipped (a sitemap may only list URLs of its own site): https://other.example.org/page

How it works

•Paste your addresses, one per line. After an address you can add a date, a change frequency, a priority, an image (img=URL) or another language version (alt=fr:URL).
•Set defaults for lines that do not have their own, and choose whether to drop duplicates and URLs from another host. Problems are listed with their line numbers.
•Copy or download the file. Large lists come out as sitemap-1.xml, sitemap-2.xml and a sitemap-index.xml; upload them all to one folder and submit only the index.

What it does and what it cannot do

•It builds a sitemap from the URLs you give it. It does not crawl your site or check that the pages exist.
•A sitemap may only list URLs on its own host, which is why other hosts are skipped by default.
•Google ignores changefreq and priority and uses lastmod only when it is accurate; Bing uses lastmod too. Leave them out if you cannot keep them true.
•A comma, space or | inside an address is read as a separator. Percent-encode such characters (%2C) first. Very large lists use your device's memory, so tens of thousands of URLs may take a moment.
•Video and news sitemap extensions are not included; image and language-alternate links are.

Questions

How many URLs can one sitemap hold?: 50,000 URLs and 50 MB uncompressed per file. Past either limit you need several files plus a sitemap index. This tool does the split for you.
Where do I put sitemap.xml?: In your site root (https://example.com/sitemap.xml) or any path on the same host, then submit it in Google Search Console and Bing Webmaster Tools, or add a Sitemap: line to robots.txt.
Do changefreq and priority matter?: Google has said it ignores both. They are harmless and valid, so they are optional here. A truthful lastmod is the only date field that is useful.
What format should lastmod have?: A W3C date: 2026-10-26 or a full date and time like 2026-10-26T09:30:00+02:00. The tool rejects impossible dates such as 2026-02-30.
Why were some of my URLs skipped?: Lines that are not full http(s) addresses, addresses over 2,048 characters, and URLs on a different host than the first one are skipped; each is listed under Checks with its line number.
Are special characters handled?: Yes. & ' " < > are escaped for XML, and non-ASCII characters in addresses are percent-encoded the way browsers do it.