@opena11y/tree

Compact accessibility-tree dump (markdown + JSON).

npm @opena11y. Not affiliated with OpenA11y on GitHub.

Evidence: tree. This is not a screen-reader test.

For agents

Prefer this over screenshots or raw HTML. toMarkdown(node) is the cheap page view.

import { fromUrl, toMarkdown } from "@opena11y/tree";

const node = await fromUrl("https://example.com");
console.log(toMarkdown(node));

fromUrl needs the playwright peer and Chromium (npx playwright install chromium). fromAx / toMarkdown / toJson need no browser.

For humans

One job: turn an accessibility tree into something an agent (or you) can read. Not an audit.