| name | html-to-markdown |
| description | Convert a URL or HTML into clean Markdown with metadata using markmaton. Handles browser capture for JS-heavy pages and deterministic HTML-to-Markdown conversion in one skill. |
HTML to Markdown
Composes with
- Use for — capture-a-web-page tasks where browser-rendered HTML or structured Markdown is needed.
- Wraps — nodriver (CDP-based headless browser capture for JS-heavy pages, with Playwright Chromium discovery) and markmaton (HTML→Markdown with main-content extraction, metadata, and link/image inventory). See
references/integration-patterns.md for browser-vs-fetch guidance.
- Outputs — JSON envelope by default (markdown body + metadata + links + images + quality signals). Use
--output-format markdown when only the raw Markdown body is needed.
Converts a URL or HTML into clean Markdown plus metadata, links, images, and quality signals.
From a URL
Capture the page and convert in one pipeline:
uv run --script scripts/capture_html.py <url> \
| uv run --script scripts/markmaton_convert.py --from-capture --output-format json
The capture script outputs a JSON envelope by default. --from-capture reads it and extracts html, url, final_url, and content_type automatically — no context lost, URL typed once.
- Add
--wait-selector <css> or --wait-text <string> to the capture step for pages that need a readiness signal.
- Prefer a simple fetch over browser capture for static articles, wikis, and server-rendered docs.
From HTML
uv run --script scripts/markmaton_convert.py --html-file page.html \
--url <url> --output-format json
Or from stdin:
echo "$html" | uv run --script scripts/markmaton_convert.py --url <url>
Pass --url when available — it improves link resolution and canonical metadata.
Key defaults
- Output:
json. Use --output-format markdown for raw Markdown only.
- Main-content extraction: on. Use
--full-content to disable.
- Capture: always headless. Timeout
10s, override with --timeout.
- Browser discovery: user's Chrome → user's Chromium → Playwright's Chromium.
References
Read only when needed:
references/usage.md — full CLI reference for both scriptsreferences/integration-patterns.md — browser vs fetch guidance, contracts, parser defaults
