AI crawlers increasingly read a file called llms.txt to learn what your site is about. This llms.txt generator builds it for you: enter your URL, it reads your sitemap, groups your pages, and outputs a valid file, free.
Robots.txt, but for AI.
An llms.txt file, sometimes written llms txt, is a Markdown file at your site root that gives AI assistants a clean, curated map of your important pages. Where robots.txt tells crawlers what they may access, llms.txt tells language models what matters and how it is organized, so they can summarize and cite your site more accurately.
It matters because AI answers are becoming a real source of traffic. A tidy llms.txt helps tools like ChatGPT, Claude, and Perplexity point people to the right page instead of guessing, which is worth the few minutes it takes to publish one.
From your sitemap, automatically.
Enter your site URL and the llms.txt generator fetches your sitemap.xml, then sorts the URLs into sections like Blog, Documentation, Products, and Company. You can add a site name and a short description to give the file context. The result is a formatted Markdown file you copy or download.
The advantage of an automatic llms txt generator is coverage: it pulls straight from the sitemap, so pages do not get missed the way they would in a hand-written list. If a page is in your sitemap, it lands in the file.
One location, like robots.txt.
Save the output as llms.txt at your site root, so it lives at yoursite.com/llms.txt, the same convention as robots.txt. Your site needs an accessible sitemap.xml first, since that is what the tool reads. Once the file is live, regenerate it whenever you publish a batch of new pages so the map stays current.
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If you found this useful, the other SEO guides are written in the same voice. We keep them short, practical, and rooted in real work.
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