Enter your domain and we'll build a ready-to-use llms.txt file that helps ChatGPT, Claude, Perplexity and other AI models understand your site. Free. No signup.
"llms" stands for Large Language Models — the AI systems behind ChatGPT, Claude, Perplexity, and Google's Gemini. llms.txt is an emerging web standard (proposed at llmstxt.org) that helps large language models understand your website. Unlike robots.txt — which only tells crawlers what they can and can't access — llms.txt is a positive signal: it tells AI models what your site is about, which pages matter most, and how to describe you accurately.
Think of it as a summary and sitemap, written in plain Markdown, placed at the root of your domain at /llms.txt. When ChatGPT, Claude, Perplexity or Google's AI Overviews build an answer that mentions your brand or topic, a well-structured llms.txt gives them a clean, authoritative source to pull from — instead of guessing from scraped HTML.
When you enter a domain, we fetch your homepage and sitemap via our server-side proxy, extract your site's title, description, and key URLs, then format them into a valid llms.txt template. You can edit the result in the textarea before copying or downloading. We don't store your data — the generation happens live each time.
Upload the finished llms.txt to the root of your domain so it's reachable at https://yoursite.com/llms.txt. That's where AI models look for it.
This free version builds a solid template from your sitemap and homepage meta — enough to get you live today. The Premium AI-powered builder reads your actual page content, writes bespoke descriptions for each linked page, and structures the whole file the way a human editor would. Learn more and unlock the AI builder →
It's a proposed standard that's rapidly gaining adoption. Anthropic, Cloudflare, Mintlify, and many developer-tool companies have published their own. Even if not every AI model reads it today, it costs nothing to add — and forward-looking tools already do.
Yes — they do different jobs. robots.txt controls access; llms.txt provides understanding. Check your robots.txt here →
Adoption varies by crawler. Perplexity, some Claude integrations, and several AI search tools already consume it. The broader pattern — serving structured, machine-readable metadata — is a safe bet regardless of which specific crawlers read the file today.
Yes — the textarea is fully editable. Add your own descriptions, reorder sections, remove links you don't want featured. Human review always improves the result.