llms.txt is a proposed Markdown file placed at your site root (/llms.txt) that gives AI tools a curated, machine-friendly map of your most important content. It starts with an H1 title, an optional summary blockquote, and H2 sections of links.

Where do I put llms.txt?

At the root of your domain, served as plain text at https://yourdomain.com/llms.txt.

llms.txt Generator & Validator

Build a spec-compliant llms.txt so AI tools can understand your site — or paste an existing one to validate it. Everything runs in your browser.

Follows the llms.txt Markdown structure

Generator

Site title (H1, required) One-line summary (blockquote, recommended) Optional details paragraph Section: Docs (title + URL per link)

Section: Optional (lower-priority links)

Validator

Paste an existing llms.txt

What is llms.txt?

llms.txt is a Markdown file at your site root that gives AI assistants a clean, curated map of your most important pages — the way robots.txt guides crawlers and sitemap.xml lists URLs. The structure is simple: an H1 title, an optional > summary blockquote, optional details, then H2 sections containing bulleted links in the form - [Title](URL): note.

Spec at a glance

Element	Rule
Title	Exactly one H1 (`# Title`), required, first line
Summary	Optional blockquote (`> …`) right after the title
Sections	H2 headings (`## Name`)
Links	Bullets: `- [Title](https://url): optional note`
Location	Served at `/llms.txt` as `text/plain` or `text/markdown`

FAQ

Is llms.txt an official standard?

It's a community proposal gaining adoption, not yet a formal web standard. It's cheap to add and harmless if ignored.

Does anything get uploaded?

No. Generation and validation run entirely in your browser.