Robots.txt Generator — Free Online

Generate a robots.txt file for your website online — control how search engines crawl your site.

What Is Robots.txt Generator?

A robots.txt generator creates a properly formatted robots.txt file that instructs search engine crawlers which pages or sections of your site they can and cannot index.

How to Use It

  1. Select crawler rules (allow/disallow by path and bot). Add your sitemap URL. Click Generate. Download robots.txt.

Key Features

  • Per-bot rules, wildcard path support, sitemap URL inclusion, crawl-delay setting
  • Browser-based — no data sent to servers
  • Free forever, no signup needed

Use Cases

Blocking admin pages from indexing, preventing duplicate content crawling, setting up SEO-friendly crawl rules

FAQ

Is it free?

Yes — unlimited use, no account required.

Is my data private?

All processing happens in your browser. Nothing is transmitted to any server.

Which browsers are supported?

Chrome, Firefox, Safari, and Edge on desktop and mobile.

Can I use it for production?

Ideal for development and debugging. For production, use standard libraries.

Are there file size limits?

No hard limits — bounded only by browser memory.

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