Robots.txt Generator Online

Create RFC 9309 compliant robots.txt files with bot presets, AI scraper blocking, and real-time syntax linting.

At a glance

Robots.txt Generator is a free web tool that generates custom robots.txt files for search engines and AI web scrapers online. 1-click toggle to block modern LLM scrapers (GPTBot, ClaudeBot, CCBot, etc.) from harvesting content. Your configuration and sitemaps remain on your local machine with zero external tracking. All processing is local: nothing is uploaded, and no account is required.

100% Client-Side Robots.txt Builder

Configure crawler permissions, block AI scrapers, and generate RFC 9309 compliant directives locally in your browser.

Private & Offline
Presets:

Sitemap & Host Directives

Live robots.txt Output

Valid RFC 9309 Syntax
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Understanding the Robots Exclusion Protocol (RFC 9309)

User-agent

Specifies the target web crawler the rules apply to. An asterisk (*) matches all automated search bots unless overridden by a more specific bot block.

Disallow & Allow

Disallow: /admin/ prevents indexing of specific directory paths. Allow: explicitly grants access to a sub-path within a disallowed parent directory.

Sitemap Directive

Directs search crawlers to your XML sitemap URL so they can efficiently discover all indexed URLs and content hierarchy across your website.

Blocking AI Web Scrapers & LLM Training Bots

Modern generative AI systems deploy dedicated web scrapers to gather training data (e.g., GPTBot by OpenAI, ClaudeBot by Anthropic, and CCBot by Common Crawl). Adding explicit disallow blocks for these bots instructs responsible AI systems not to harvest your copyrighted text, articles, or proprietary assets.

Why Use This Robots.txt Generator?

100% Client-Side Privacy: Your configuration and sitemaps remain on your local machine with zero external tracking.
AI Scraper Protection: 1-click toggle to block modern LLM scrapers (GPTBot, ClaudeBot, CCBot, etc.) from harvesting content.
Built-in Presets: Instant templates for Default SEO, WordPress, AI Scraping Defense, and Staging/Private environments.
Live Syntax Linter: Verifies leading slashes, user-agent ordering, and protocol validity as you type.

How to Use Robots.txt Generator

1

Select a Preset or Add Bot Groups

Choose a starting preset (like Default Web or Block AI Scrapers) or configure custom User-agent groups.

2

Define Disallow & Allow Paths

Specify directory paths to block (e.g. /admin/, /private/) and public paths to explicitly allow.

3

Add Sitemaps & Download

Enter your XML sitemap URL, review the real-time syntax checker, and click Download robots.txt.

robots.txt Generation: Default Web with AI Crawler Blocking

Generates a clean RFC 9309 compliant robots.txt allowing public search engines while shielding content from automated AI scrapers.

Configured Directives Source 
User-agent: *, Disallow: /admin/, User-agent: GPTBot, Disallow: /, Sitemap: https://example.com/sitemap.xml
Generated robots.txt Output Processed 
User-agent: *
Disallow: /admin/
Allow: /

User-agent: GPTBot
Disallow: /

Sitemap: https://example.com/sitemap.xml

Technical Specifications & Engine Details

Technical specifications and engine details for Robots.txt Generator
Specification Details
Supported Formats TEXT, CONFIG → TEXT
Execution Mode 100% Client-Side In-Browser (client)
Browser Requirements Modern browser with JavaScript enabled.
Performance Constraints Runs client-side in browser memory. Performance and file limits are bounded by available local device RAM.
Maintained by Pragyan Pahadi

100% Client-Side Privacy Guarantee

Your configuration and sitemaps remain strictly on your local device. Zero data is transmitted to external servers.

Frequently Asked Questions

What is robots.txt and where should it be placed?
A robots.txt file is a plain text file placed at the root of your domain (e.g. https://example.com/robots.txt) that instructs search engine crawlers and automated bots which paths they are permitted or forbidden to access.
Does robots.txt prevent unauthorized visitors from viewing private files?
No. Robots.txt is a voluntary advisory protocol for well-behaved web crawlers. It is not an access control mechanism. Sensitive directories and admin portals should always be protected with server-side authentication and firewall rules.
How do AI crawlers handle robots.txt?
Legitimate generative AI developers (including OpenAI, Anthropic, and Common Crawl) respect robots.txt directives targeting their designated bot user-agents (GPTBot, ClaudeBot, CCBot) to opt out of LLM training dataset collection.

Methodology

Rankings and recommendations here are never paid for.

Last updated .

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