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Sitemap Generator

Generate a sitemap.xml file with lastmod, changefreq and priority.

Best for: Launching or expanding a site, or helping search engines find deep or new pages.

Complete guide

Input

How it's calculated & sources
The Sitemap Generator uses the standard method for this calculation. It runs entirely in your browser, so your inputs are never uploaded. Last reviewed June 2026.

Free & no sign-up · runs entirely in your browser. Results are estimates for general information, not professional advice — verify important decisions with a qualified expert. Last reviewed June 2026.

Continue your journey

Where people usually head next.

Complete guide

Quick answers

Short, sourced answers to the questions people (and AI assistants) ask most.

What is Sitemap?
A sitemap generator builds an XML sitemap that lists your site's URLs so search engines can discover and crawl them more efficiently.
Why does Sitemap matter?
A machine-readable map of your site for crawlers, especially useful for large sites or pages that are not well linked internally.
How is Sitemap calculated?
An XML sitemap lists each URL in a <url><loc> entry, optionally with a lastmod date. You submit it in Search Console and reference it from robots.txt. It aids discovery of pages but does not guarantee they will be indexed.
What are common sitemap mistakes?
Listing URLs that are noindex, redirected or blocked by robots.txt.
When should you use the Sitemap Generator?
Launching or expanding a site, or helping search engines find deep or new pages.

What is the Sitemap Generator?

A sitemap generator builds an XML sitemap that lists your site's URLs so search engines can discover and crawl them more efficiently.

How the Sitemap Generator works

An XML sitemap lists each URL in a <url><loc> entry, optionally with a lastmod date. You submit it in Search Console and reference it from robots.txt. It aids discovery of pages but does not guarantee they will be indexed.

Common mistakes to avoid

  • Listing URLs that are noindex, redirected or blocked by robots.txt.
  • Exceeding the limits (50,000 URLs or 50 MB per file — split with a sitemap index).
  • Leaving lastmod dates stale or inaccurate.
  • Generating the file but never submitting it.

Keywords: sitemap, xml, seo.

Sources: sitemaps.org protocol, Google Search Central — Sitemaps

Reviewed by the Free Tools Galaxy editorial team · Updated June 2026 · Calculated privately in your browser.

Frequently asked questions

Is the Sitemap Generator free to use?+

Yes. Every tool on Free Tools Galaxy is 100% free, runs in your browser and requires no signup.

How accurate is the Sitemap Generator?+

Sitemap Generator uses the standard sitemap formula in double-precision arithmetic, so the same inputs always produce the same result and you can verify any figure by hand. It is an educational estimate — real-world outcomes depend on your actual rates, rules and assumptions.

Do you store my inputs?+

No. The Sitemap Generator runs entirely in your browser. Nothing is uploaded or saved to a server.

Can I use the Sitemap Generator on mobile?+

Yes — the interface is fully responsive and works on phones, tablets and desktops.

What are common mistakes to avoid?+

The most frequent mistake is mixing units. Double-check your inputs use a single, consistent unit before clicking Calculate.

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Smart Autopilot

AI-style routing · 100% on-device

Based on this tool, your recent activity and how others chain tools together.

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Share & publish

Share & challenge

Share-to-grow kit (Reddit, LinkedIn, Medium)
Reddit post
Title: I built/used this free sitemap generator — instant, no signup

Body: Generate a sitemap.xml file with lastmod, changefreq and priority. Try it: https://freetoolsgalaxy.com/tools/sitemap-generator
LinkedIn post
Sitemap Generator on Free Tools Galaxy — Generate a sitemap.xml file with lastmod, changefreq and priority. https://freetoolsgalaxy.com/tools/sitemap-generator
Medium intro
# Sitemap Generator — the free tool I keep coming back to

Generate a sitemap.xml file with lastmod, changefreq and priority.

Try it: https://freetoolsgalaxy.com/tools/sitemap-generator
Quora answer
The fastest way is to use a free in-browser sitemap generator: https://freetoolsgalaxy.com/tools/sitemap-generator. Generate a sitemap.xml file with lastmod, changefreq and priority.

Embed this tool anywhere

Free embed code for blogs, docs and dashboards. Every embed sends a backlink home — helping you and the galaxy grow together.

HTML iframe
Drop into any site — auto-resizes to its content height, theme-aware.
<iframe src="https://freetoolsgalaxy.com/tools/sitemap-generator?embed=1" title="Sitemap Generator" loading="lazy"
  style="width:100%;height:600px;border:0;border-radius:16px;background:#0b1020"
  allow="clipboard-write"></iframe>
<script>window.addEventListener("message",function(e){if(e.data&&e.data.type==="ftg-embed-height"){document.querySelectorAll("iframe").forEach(function(f){if(f.contentWindow===e.source){f.style.height=e.data.height+"px";}});}});</script>
<p><a href="https://freetoolsgalaxy.com/tools/sitemap-generator" target="_blank" rel="noopener">Powered by Sitemap Generator on Free Tools Galaxy</a></p>
Responsive wrapper
Aspect-locked container — good for blog post bodies.
<div style="position:relative;padding-bottom:75%;height:0;overflow:hidden;border-radius:16px">
  <iframe src="https://freetoolsgalaxy.com/tools/sitemap-generator?embed=1" title="Sitemap Generator" loading="lazy"
    style="position:absolute;inset:0;width:100%;height:100%;border:0" allow="clipboard-write"></iframe>
</div>
WordPress / Markdown
Paste in a custom-HTML block or markdown file.
[Sitemap Generator — free online tool](https://freetoolsgalaxy.com/tools/sitemap-generator)

<iframe src="https://freetoolsgalaxy.com/tools/sitemap-generator?embed=1" width="100%" height="600" frameborder="0"></iframe>
Text link-back
Minimal credit link — best for sidebars and footers.
<a href="https://freetoolsgalaxy.com/tools/sitemap-generator" target="_blank" rel="noopener">Try the free Sitemap Generator</a>

Share-to-Grow Kit

Pre-written, ready-to-paste posts for every major channel. Help others discover this tool — and earn backlinks.

Title
I built a free pregnancy due date calculator that works instantly in the browser — no signup, no ads in your face
Body
Hey r/[subreddit],

I kept needing a quick pregnancy due date calculator and most options online were slow or behind paywalls, so I built one that:

• Runs 100% in your browser (your data never leaves your device)
• No signup, no email wall, no popups
• Loads in under a second on mobile

It covers the standard pregnancy due date use cases (pregnancy, due, date, baby) and links out to the formula + worked examples if you want to learn the math.

Link: https://freetoolsgalaxy.com/tools/pregnancy-due-date-calculator

Happy to take feedback — what's missing?
Post to a relevant subreddit (e.g. r/InternetIsBeautiful, r/webdev, r/productivity). Avoid spammy subs.
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