Robots.txt Generator

Build a valid robots.txt file with allow/disallow rules, sitemap and crawl-delay.

The Robots.txt Generator builds a clean, correctly formatted robots.txt file from simple inputs, so you can control how search engine crawlers access your site without memorising the syntax. You choose the user-agent, list the paths to allow or disallow, and optionally add a sitemap URL and crawl-delay, and the tool assembles a valid file you can copy or download and drop into your site's root.

A robots.txt file is the first thing well-behaved crawlers look for, and small mistakes such as a missing slash or an accidental blanket disallow can hide important pages from search or expose ones you meant to keep private. By generating the file from structured fields, this tool helps you avoid those errors and produce a predictable result every time.

Everything is generated locally in your browser using JavaScript, so the paths and structure of your site are never uploaded or stored. That keeps your site's layout private while giving you a ready-to-use robots.txt in seconds, whether you are launching a new site or tightening the crawl rules on an existing one.

Features

  • Sets the user-agent so you can target all crawlers or a specific one such as Googlebot.
  • Adds any number of disallow paths, one per line, to keep sections out of search indexes.
  • Adds allow paths to create exceptions within a broader disallowed directory.
  • Includes a one-click block-all option to disallow the entire site during development.
  • Appends a sitemap URL so crawlers can discover all your important pages easily.
  • Supports an optional crawl-delay value for crawlers that respect it.
  • Copies or downloads the finished robots.txt, all generated privately in your browser.

How to use Robots.txt Generator

  1. Enter the user-agent, using an asterisk to target all crawlers or a name for a specific one.
  2. List the paths you want to disallow, one per line, each beginning with a slash.
  3. Add any allow paths that should remain crawlable inside a disallowed directory.
  4. Enable block-all if you want to temporarily disallow the entire site, such as on a staging server.
  5. Add your sitemap URL and, if needed, a crawl-delay value.
  6. Copy or download the generated robots.txt and place it in the root directory of your site.

Benefits

  • Developers produce a valid robots.txt quickly without looking up the exact syntax.
  • Site owners keep admin, cart, and search pages out of search engine indexes.
  • Teams block an entire staging site from being crawled with a single option.
  • SEO specialists point crawlers to the sitemap to speed up discovery of new pages.
  • Agencies hand clients a correct, ready-to-deploy robots.txt with no guesswork.
  • Because generation is local, your site's structure and paths stay private.

The robots.txt file lives in the root of your domain and uses a simple set of directives. User-agent names the crawler a group of rules applies to, Disallow tells it which paths not to crawl, and Allow carves out exceptions. A common mistake is a lone Disallow with a single slash, which blocks the entire site, so the block-all option here is deliberate and clearly labelled to prevent accidents.

Remember that robots.txt controls crawling, not indexing in every case. A page blocked from crawling can still appear in results if other sites link to it, just without a description. To keep a page out of search entirely, use a noindex meta tag on a crawlable page rather than relying on robots.txt alone. Adding your sitemap URL to the file helps crawlers find and prioritise your important content.

Well-behaved crawlers honour robots.txt, but not all bots do, so never use it as a security measure for sensitive content. All generation happens in your browser with JavaScript, so nothing about your site is uploaded, making the tool safe to use while planning a launch or restructuring an existing site's crawl rules.

Frequently asked questions

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