Robots.txt Generator — Free Online Tool

Build a correct robots.txt with AI-crawler controls. · No signup · Works on mobile

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100% private: your data is processed in your browser. Nothing is uploaded to our servers.

How to use the robots.txt generator

  1. 1

    Choose a starting template — allow all, block AI training bots, or custom.

  2. 2

    Add per-bot rules: pick a crawler (Googlebot, GPTBot, Bingbot…) and set allow/disallow paths.

  3. 3

    Add your sitemap URL, then copy or download robots.txt and upload it to your site root.

What does this tool do?

This free robots.txt generator builds a syntactically correct robots.txt file for your website — set allow and disallow rules per crawler, add your sitemap URL, and control modern AI crawlers like GPTBot, ClaudeBot, and PerplexityBot individually. Copy the result or download the file directly.

How does the robots.txt generator work?

The generator follows the Robots Exclusion Protocol (standardized as RFC 9309 in 2022): rules are grouped by User-agent, most-specific path wins, and wildcards (*) and end-anchors ($) are supported by major engines. A built-in linter flags common mistakes like missing colons or conflicting rules.

Frequently Asked Questions

Should I block AI crawlers like GPTBot in robots.txt?

It's a trade-off. Blocking GPTBot and Google-Extended stops your content being used for AI training, but blocking search-facing bots like OAI-SearchBot, ChatGPT-User, and PerplexityBot removes you from AI search answers — a growing traffic source. Many sites now allow answer-engine bots but block training-only bots.

Does robots.txt actually stop pages appearing in Google?

Not reliably — robots.txt stops crawling, not indexing. A blocked page can still appear in results (URL only, no snippet) if other sites link to it. To truly keep a page out of Google, allow crawling and use a noindex meta tag, or protect it with authentication.

Is the robots.txt generator really free?

Yes — 100% free with no hidden charges, trial limits, or premium tiers for core features. No account or email needed. The site is supported by non-intrusive display ads, which keeps every tool free for everyone.

Are my files private when using the robots.txt generator?

Completely. The robots.txt generator processes everything locally in your browser — your files are never uploaded to any server. When you close the tab, everything is gone. This makes it safe for confidential documents, client work, and personal photos.

Does the robots.txt generator work on mobile phones?

Yes. It's built mobile-first and works on any modern phone browser — iPhone (Safari) and Android (Chrome) included. You can pick files straight from your camera roll and download results directly to your device.

Do I need to install any software to use the robots.txt generator?

No. The robots.txt generator runs entirely in your web browser — no downloads, extensions, or signup. Open the page, use the tool, download your result. It works on Windows, macOS, Linux, ChromeOS, iOS, and Android.