This free llms.txt generator builds a spec-correct llms.txt file for your website in seconds. Enter your site name, a one-line summary and your key pages, and it produces a Markdown file you can copy or download and drop at the root of your domain. Everything runs in your browser: nothing is sent to a server, there is no sign-up, and there is no cost. Below the tool you will find a short explainer on what llms.txt is and why it matters for being understood by AI.
The tool
About this tool
What is llms.txt?
llms.txt is a simple Markdown file you place at the root of your site (at /llms.txt) to give AI systems a clean, curated map of your most important content. Instead of forcing a model to crawl and guess at your HTML, you hand it a short, structured summary plus links to the pages that matter. It is to AI readers roughly what a sitemap or robots.txt is to search crawlers: a friendly, machine-first entry point.
The format, in one minute
The spec is deliberately small. A valid llms.txt starts with a single H1 with your site or project name (the only required part), followed by a blockquote with a short summary, then optional sections. Each section is an H2 heading with a Markdown list of links, where every link is written as a title, the URL, and a short description.
# Your Site Name
> A one-line summary of what your site is and who it is for.
## Docs
- [Getting started](https://example.com/start): How to set up in five minutes.
- [API reference](https://example.com/api): Every endpoint with examples.
## Optional
- [Full text](https://example.com/llms-full.txt): The whole site as one document.Why it matters for AEO
As more people ask AI assistants questions instead of typing into a search box, being cleanly readable by those systems becomes part of getting found. A good llms.txt makes it cheap and unambiguous for an AI to understand what your site offers and link to the right page, which is the heart of answer engine optimisation (AEO). It does not replace good content or a sitemap; it complements them by giving machine readers a curated front door.
How to use the file
Generate the file with the tool above, then save it as llms.txt and upload it to the root of your domain so it is reachable at yoursite.com/llms.txt. Keep it short and curated: link the handful of pages that best represent your site rather than every URL. Update it when your key pages change, and consider also publishing a fuller llms-full.txt with more complete content for systems that want the whole corpus in one request.