HTML to Markdown Conversion API
Convert any public webpage to clean, structured markdown for LLM ingestion, RAG pipelines, documentation generation, and content workflows — without manual HTML parsing.
How It Works
Submit the target URL
Send any webpage URL and request markdown output format. The API handles JavaScript rendering for dynamic pages.
Receive clean markdown
Get structured markdown with headings, lists, code blocks, and links preserved — HTML noise removed.
Pipe to your workflow
Feed output directly to vector stores, LLM context windows, or document generation pipelines.
Quick Start
curl -X POST https://alterlab.io/api/v1/scrape \
-H "X-API-Key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"url": "https://docs.example.com/getting-started",
"output_format": "markdown",
"render_js": false
}'Need an API key? Sign up free — no credit card required.
Related Data Extraction Guides
Related Use Cases
Frequently Asked Questions
Responsible Use
AlterLab is designed for extracting publicly available data. Always review the terms of service for any website you access, respect robots.txt directives, and ensure your use case complies with applicable laws in your jurisdiction.
Your first scrape.
Sixty seconds.
$1 free balance. No credit card. No SDK.
Just a POST request.
No credit card required · Up to 5,000 free scrapes · Balance never expire