Free llms.txt generator

What llms.txt is

llms.txt is a plain markdown file you publish at /llms.txt. It is meant for large language models and AI agents, not for people or search engine crawlers. Instead of making an AI tool crawl and parse your whole site, it gets a short, clean overview with links to the pages that matter.

It is different from robots.txt. robots.txt tells crawlers what they may and may not fetch. llms.txt does not grant or block anything; it is a reading guide.

The llms.txt format

According to the specification at llmstxt.org, the file uses this structure, in this order:

1. An H1 with your site or project name. This is the only required part.
2. A blockquote with a short summary of the site.
3. Optional paragraphs or lists with more detail. No headings here.
4. H2 sections with lists of links. Each item is a markdown link in [name](url) form, optionally followed by a colon and a short note.
5. An "Optional" H2 section by convention, for secondary links an AI tool can skip when it needs a shorter context.

A minimal example:

# Acme Plumbing

> Acme Plumbing is a licensed plumbing company serving Leeds and Bradford, offering emergency repairs, boiler installation and bathroom fitting.

We are open 24 hours for emergency call-outs. Prices are listed on each service page.

## Services

- [Emergency plumbing](https://example.com/emergency): 24/7 call-outs and typical response times
- [Boiler installation](https://example.com/boilers): brands, prices and warranty

## Company

- [About us](https://example.com/about): history, licences and service area
- [Contact](https://example.com/contact): phone, email and opening hours

## Optional

- [Blog](https://example.com/blog)

The spec also suggests offering clean markdown versions of important pages at the same URL with .md added, so AI tools can read them without the HTML around them.

How much AI platforms actually use llms.txt

This is the honest part. llms.txt is a proposal, not a standard that the major AI search engines have committed to.

• Google says in its documentation on AI features that you do not need to create new machine-readable files, AI text files or markup to appear in AI Overviews or AI Mode. Google staff have also said publicly that its systems do not use llms.txt.
• Other AI companies have not, as far as we could find, published documentation saying their search or answer products read llms.txt when deciding what to cite.
• Where it can help: developer documentation sites and AI coding tools, where an agent fetching a clean list of docs pages saves time. Some documentation platforms generate llms.txt automatically for this reason.

So treat llms.txt as a cheap, low-risk extra. It will not fix a site that blocks AI crawlers, hides content behind JavaScript, or lacks clear answers. Those matter far more, and our free AI visibility checker tests them.

How to install llms.txt

1. Generate the file with the tool above. Keep the summary factual and the link list short: your main service or product pages, pricing, about and contact.
2. Save it as llms.txt in plain text with UTF-8 encoding.
3. Upload it to your site root so it loads at https://yourdomain.com/llms.txt. On WordPress, use your host's file manager, SFTP or an SEO plugin that supports it. On Next.js and most static setups, put it in the public folder. Hosted platforms that do not allow root files may need an app or a redirect.
4. Check it loads in a browser and returns plain text, not your 404 page.
5. Update it when you add or remove important pages.

You do not need to link to llms.txt from your pages or submit it anywhere.

Want it done with everything else?

llms.txt is one small item. Our AI search optimization services include it in month one of the $299/month plan, with AI crawler access, schema, entity data and content fixes, then monitoring of up to 50 prompts a month. See our guide to generative engine optimization or how to appear in Google AI Overviews, or let an AI SEO agency handle it.