Robots.txt Generator

Generate a valid robots.txt file — user-agent rules, allow/disallow paths, and a sitemap line — with CMS presets.

100% Browser-Based • Local Processing
Start from a preset

A preset replaces whatever is below it. Every rule stays editable afterwards.

1 · Rule groups
2 · Sitemaps

robots.txt

robots.txt controls crawling, not indexing. A disallowed URL can still appear in Google if other sites link to it. To keep a page out of results, let it be crawled and use a noindex robots meta tag — blocking it here stops Google ever seeing that tag.

Output

Upload this as robots.txt at the very root of the domain, so it answers at https://yoursite.com/robots.txt. Subfolders are ignored and every subdomain needs its own file. It is advisory — reputable crawlers obey it, but it is not a security control.

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Privacy Focused

🔒 Local Processing. Your site data never leaves your device.

Instant Results

🌐 Fully Client-Side. Runs instantly in your browser.

No Signup

⚡ No accounts. No API keys. Just open and use.

Browser Based

🚀 No installs, no crawlers, no site verification.

Overview

What is a Robots.txt Generator?

A Robots.txt Generator creates the robots.txt file that tells search-engine crawlers which parts of your site they may or may not crawl. You add user-agent rules with allow and disallow paths and a sitemap line, and it outputs a valid plain-text file to upload to your site's root — controlling crawl access, though not indexing on its own.

robots.txt is a small text file at the root of your site that gives crawlers instructions: which user-agents are addressed, and which paths they should or shouldn't crawl. Getting the syntax wrong can accidentally block your whole site or fail to block what you intended.

This generator builds a valid robots.txt from simple rule groups, adds your sitemap line, and includes presets for common setups. It runs entirely in your browser, and you can copy or download the result.

Guide

How to generate a robots.txt file

Step 1: Add a rule group: choose the user-agent (or * for all) and the Allow/Disallow paths

Add a rule group: choose the user-agent (or * for all) and the Allow/Disallow paths.

Step 2: Add your sitemap URL, and use a preset if your CMS has common rules

Add your sitemap URL, and use a preset if your CMS has common rules.

Step 3: Copy or download the file and upload it as robots.txt at your site's root

Copy or download the file and upload it as robots.txt at your site's root.

Details

What robots.txt does — and the crawl-vs-index trap

robots.txt uses simple directives grouped by user-agent: Disallow blocks a path from being crawled, Allow re-permits a sub-path, and a Sitemap line points crawlers to your XML sitemap. Paths support wildcards — * matches any sequence and $ anchors the end of a URL — and the most specific matching rule generally wins. The single most important thing to understand is that robots.txt controls crawling, not indexing: if you Disallow a page but other sites link to it, Google can still index the URL (often with no description). To keep a page out of search results, let it be crawled and use a noindex robots meta tag instead — blocking it in robots.txt actually prevents Google from seeing the noindex. Also remember robots.txt is advisory: well-behaved crawlers obey it, but it's not a security control and bad actors can ignore it. The generator outputs correct syntax and a sitemap reference; everything runs locally in your browser. To control AI crawlers specifically, use the AI Crawler Control generator; for the sitemap, the XML Sitemap Generator.

Support

Frequently Asked Questions

What is a robots.txt file?

robots.txt is a plain-text file at the root of your domain (yoursite.com/robots.txt) that tells search-engine crawlers which URLs they may or may not crawl, grouped by user-agent. It's the first thing most crawlers check, and it's how you keep them out of areas like admin paths, internal search, or staging sections.

Does robots.txt stop a page from being indexed?

No — this is the most common misconception. robots.txt blocks crawling, not indexing. A disallowed URL can still appear in Google if other pages link to it, usually without a description. To keep a page out of search results, allow crawling and add a noindex robots meta tag, or use HTTP auth for private content.

Where do I put the robots.txt file?

At the very root of your domain, so it's reachable at https://yoursite.com/robots.txt. It must be named exactly robots.txt and served as plain text. Subfolders don't work — a file at yoursite.com/blog/robots.txt is ignored. Each subdomain needs its own robots.txt.

How do wildcards work in robots.txt?

Two wildcards are supported: * matches any sequence of characters, and $ anchors the end of a URL. For example, Disallow: /*.pdf$ blocks all URLs ending in .pdf, and Disallow: /search? blocks crawl of search query URLs. Use them carefully — an overly broad pattern can block more than you intend.

Should I add my sitemap to robots.txt?

Yes — adding a Sitemap: line with the full URL of your XML sitemap helps crawlers discover all your pages, and it works for every crawler that reads robots.txt. It's independent of the Allow/Disallow rules, so include it even if you have few other directives. You can list multiple sitemaps.

Will all crawlers obey my robots.txt?

Reputable search engines like Google and Bing respect robots.txt, but it's a voluntary standard, not enforcement — malicious bots and scrapers can ignore it entirely. Never rely on robots.txt to protect sensitive data; it can even advertise the paths you're trying to hide. Use real access controls for anything private.

Is it free, and do I need to sign up?

Yes, it's completely free with no account, no trial, and no limit on how many times you use it. Unlike most SEO suites, there's no login wall — it runs entirely in your browser, so you just open the page and use it.

Is my data private?

Yes. Everything is processed in your browser — whatever you type or paste is never sent to a server. Nothing is stored once you close the tab, so your URLs, content, and site details stay on your own device. That client-side approach is the core difference from cloud SEO tools.

Does it work on mobile?

Yes. It runs in your phone's browser with nothing to install, so you can generate or check markup on Android or iOS. The layout adapts to small screens, though pasting longer code is easier on a desktop.

Does it work offline?

Once the page has loaded, the work runs entirely on your device, so it keeps working without a connection. You only need to be online to open the page the first time — which is also why nothing you enter is uploaded.

Can I copy the output?

Yes. You can copy the generated code or results to your clipboard with one click, ready to paste straight into your site's HTML, CMS, or files. Because everything runs locally, copying is instant with no upload step.

Will this directly improve my rankings or get me into AI answers?

It produces correct, standards-compliant markup that helps search engines and AI engines (Google, AI Overviews, ChatGPT, Perplexity) understand your page clearly — which is a prerequisite for ranking and being cited. But it doesn't directly change rankings or guarantee a rich result or AI citation; those are decided by the engines based on your overall content and authority.

Still have questions?

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