Free Robots.txt Generator

The Robots.txt Generator is a free online tool that creates robots.txt files to control how search engine crawlers access and index your website.

Yes, it is completely free with no registration required. All file generation happens client-side in your browser.

A robots.txt file tells search engine bots which pages to crawl or skip, helping you manage crawl budget and prevent indexing of private pages.

Absolutely. The Robots.txt Generator processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.

Yes, the Robots.txt Generator is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

No account or registration is needed. Simply open the Robots.txt Generator in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

Yes, the Robots.txt Generator is built following current Google Search guidelines and best practices. We regularly update the tool to reflect changes in search engine requirements.

Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.

The Robots.txt Generator works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

Disallow tells a crawler not to request the paths that follow it, while Allow explicitly permits them, which is useful for opening a single file or subfolder inside a directory you've otherwise blocked. For example, Disallow: /admin/ blocks the folder, and Allow: /admin/public.html lets that one page through. When a URL matches both an Allow and a Disallow rule, search engines don't go top-to-bottom — the most specific (longest) matching pattern wins, and if two patterns are the same length the Allow takes priority. Getting this precedence wrong is a common way to accidentally block or expose pages. This generator's URL Tester reproduces that exact matching logic: enter a path and a user-agent, and it shows whether the URL is allowed or blocked and which rule decided it, so you can verify before deploying.

AI crawlers obey robots.txt by their own user-agent name, separately from search bots, so blocking Googlebot does not stop GPTBot, and vice versa. To keep a bot out, add a block targeting its exact name with a Disallow: / line, for example User-agent: GPTBot followed by Disallow: /. The generator has a dedicated AI Bot Control tab that handles this for you: you can allow or block each crawler individually — GPTBot and ChatGPT-User (OpenAI), Google-Extended, ClaudeBot and anthropic-ai (Anthropic), PerplexityBot, CCBot, Bytespider, and others — or block them all at once while leaving normal search engines free to index your pages. Remember this is a voluntary standard, so well-behaved AI crawlers respect it but it can't force compliance. Switch to the AI Bot Control tab to toggle each one and watch the rules appear in your file.

Not reliably. Disallow tells crawlers not to fetch a page, but it does not guarantee the URL stays out of search results — Google can still index a blocked URL if other pages link to it, sometimes showing the link with no description because it couldn't read the content. To actually keep a page out of the index, use a noindex meta tag or X-Robots-Tag header on the page itself, and crucially leave it crawlable so the crawler can see that directive; blocking it in robots.txt hides the noindex tag. Robots.txt is best for managing crawl budget and steering bots away from low-value URLs, not for hiding sensitive data, which it can't do since malicious bots may ignore it entirely. Use this generator to control crawling, and pair it with page-level noindex tags when you need true removal from results.

A robots.txt file must live at the root of a domain — for example https://example.com/robots.txt — not in a subfolder like /blog/robots.txt, because crawlers only ever look for it at that one root location. It also applies per host, so a file at the root of your main domain does not cover a subdomain: shop.example.com needs its own robots.txt, and the http and https versions, plus www and non-www, are each treated as separate hosts that should serve the correct file. The file is plain text and must be UTF-8 encoded with the exact filename robots.txt in lowercase. This generator lets you copy the finished file to your clipboard or download it as a ready-to-upload .txt, so all you do is drop it at your domain root and confirm it loads at yoursite.com/robots.txt.

Search engines render your pages much like a browser does, loading the CSS and JavaScript a page needs to display its layout and content. If your robots.txt disallows the folders holding those resources, the crawler can't fetch them, so it sees a broken or incomplete version of the page. That can hurt how the page is understood and ranked, especially for mobile-friendliness and content that's injected by scripts. A common mistake is blocking a directory like /assets/ or /wp-includes/ that also contains render-critical files. The fix is to allow those resources even when you disallow the directories around them — for instance, keep the folder blocked but add an Allow rule for the .css and .js paths inside it. As you build rules here, the live validation flags conflicts and risky patterns, and the URL Tester lets you confirm that key script and style files stay crawlable before you publish.