Robots.txt Generator
Build a valid robots.txt file in seconds — default rules, per-bot controls including AI crawlers, sitemap and crawl-delay, free, no signup.
Note: Google ignores Crawl-delay. It is included for the crawlers that do honor it.
What Is the Robots.txt Generator?
A free robots.txt generator is a tool that builds the robots.txt file for your website: a small plain-text file that tells search engine and AI crawlers which parts of your site they may request. Pick a default rule, add disallow paths, set per-bot rules and a sitemap address, and the tool produces the finished file for you to copy, download and upload to your domain root.
What Is It Used For?
Site owners use it when launching a site so crawlers start on the right footing. WordPress and shop owners use it to keep crawlers out of admin, cart and staging areas. Publishers use it to decide, bot by bot, whether AI crawlers such as GPTBot and ClaudeBot may read their content. Anyone setting up a new domain uses it to publish a correct file without memorising robots.txt syntax.
Key Benefits
- Standard syntax — User-agent, Allow, Disallow, Crawl-delay and Sitemap lines in the usual format.
- Per-bot control — give Googlebot, Bingbot and four AI crawlers their own rules, separate from the default.
- AI crawler toggles — decide for GPTBot, ClaudeBot, CCBot and PerplexityBot individually, instead of one blanket rule.
- Copy or download — take the file as text or as a ready-named robots.txt download.
- Completely free — no signup, no download limits, no account.
- Private — generation happens entirely in your browser; nothing you type is uploaded.
How to Use This Free Robots.txt Generator
- Choose a default rule for all crawlers: Allow all, Block all, or Custom.
- If you chose Custom, list the paths to block in the disallow box, one per line (for example /admin/). The box only takes effect when Custom is selected.
- Set a per-bot rule for any crawler you want to treat differently. "Default" means that bot follows the default rule above; Allow and Block give it its own group.
- Add your sitemap address if you have one, and a crawl-delay in seconds if you want one (note that Google ignores crawl-delay).
- Click Copy or Download robots.txt, then upload the file to the root of your domain so it is served as your site's robots.txt file.
Common Mistakes to Avoid With Robots.txt
- Treating robots.txt as security. It is a request, not a lock. Well-behaved crawlers honor it, but malicious bots ignore it, and a disallowed URL can still appear in search results if other pages link to it. Use passwords for private areas and noindex for pages you want out of results.
- Blocking everything by accident. A file containing only "Disallow: /" stops compliant crawlers from the whole site. Check the output before uploading, especially after choosing Block all.
- Putting the file in the wrong place. Crawlers only read the file at the root of the domain, named exactly robots.txt. A copy in a subfolder is never read.
- Expecting Google to honor crawl-delay. Google ignores the Crawl-delay directive; it controls its own crawl rate, so this setting only affects crawlers that support it.
- Blocking assets Google needs to render pages. Disallowing style, script or image folders can stop Google from rendering your pages properly, which hurts how they are understood.
Frequently Asked Questions
What is a robots.txt file? A plain-text file at the root of a website that tells compliant crawlers which URL paths they may request. It follows the Robots Exclusion Protocol: groups of rules, each starting with a User-agent line.
Is this robots.txt generator free? Yes, completely free — no signup, no limits, no account.
Is anything I type uploaded anywhere? No. Generation happens entirely in your browser, so your paths and sitemap address never leave your device.
Where does the file go? Upload it to the root of your domain, named exactly robots.txt, so crawlers find it as your site's robots.txt file. A copy anywhere else is ignored.
Will robots.txt hide a page from Google? Not reliably. A disallowed page can still appear in results if other pages link to it. To remove a page from results, use a noindex tag; to keep it private, use a password.
Does robots.txt stop bad bots? No. It only guides well-behaved crawlers. Scrapers and malicious bots routinely ignore it, so it is not a security measure.
What does "Default" mean for a per-bot rule? The bot gets no group of its own and follows the default rule group. Allow and Block create a separate group just for that bot, which overrides the default for it.
Which AI crawlers can I control? GPTBot (OpenAI), ClaudeBot (Anthropic), CCBot (Common Crawl) and PerplexityBot, each with its own Allow, Block or Default choice.
What is crawl-delay? A request asking a crawler to wait a number of seconds between requests. Some crawlers honor it; Google ignores it and sets its own crawl rate.
What does the sitemap line do? It tells crawlers where your sitemap is, so they can discover your pages faster. It is optional, and the tool copies the address exactly as you type it — it does not check whether the address is reachable.
What does "Allow all" produce? A default group of "User-agent: *" with "Allow: /", which tells compliant crawlers they may request the whole site.
Can I edit the generated file by hand? Yes. The output is plain text — copy it, adjust any line, and then upload the edited version.
Does it work on mobile? Yes. The tool runs in any modern mobile browser and the layout adjusts to small screens.
Final Thoughts
Every site should have a robots.txt file, even if it only says "allow all" — it is the first file crawlers look for, and it is where your AI crawler decisions live. Generate yours here, read it once before uploading, and keep it at your domain root.