Semrush AI Tools

Robots.txt Generator – Free Online Tool

SEO & MARKETING

Robots.txt Generator

Build a correct robots.txt in seconds. Set allow and disallow rules, add your sitemap, and copy the finished file — the preview updates live.

Build a robots.txt for your site

Tell search engines which parts of your site to crawl. The file updates live as you change the settings.



Private: the file is generated in your browser. Upload it to your site's root folder (example.com/robots.txt) to activate it.

HOW IT WORKS

How to Generate a Robots.txt

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Choose the default

Allow everything for a normal site, or block everything for a staging/private site.

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Add path rules

Add rows for paths like /wp-admin/ or /cart/, choosing Allow or Disallow per user-agent.

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Copy or download

The file updates live; copy it or download it, then upload it to your site's root folder.

WHY CHOOSE US

Why Use Our Robots.txt Generator?

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Live Preview

The file builds itself as you change settings — no syntax guessing.

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Per

Agent Rules — Different rules for different crawlers, with any number of path rows.

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Sitemap Included

Add your sitemap URL so search engines discover it automatically.

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Private by Design

Generated in your browser; nothing is uploaded.

FREQUENTLY ASKED QUESTIONS

Common Questions About Robots.txt Generator

It tells search-engine crawlers which parts of your site they may or may not visit. It is a request, not a lock — malicious bots ignore it.
At your domain root: example.com/robots.txt. Search engines only look there.
Allow all (Disallow: with nothing after it) lets crawlers roam freely; Block all (Disallow: /) keeps every crawler out — use it for staging sites.
Yes — add a row with User-agent * and Disallow /folder-name/.
No — it exists only in your browser until you download it.
EXPLORE MORE

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Ready to try it?

No sign-up, no installation — just open the tool and get started in seconds.

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