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crawl4ai

Crawls web pages and extracts structured data using CSS or LLMs.

601|121|Updated Feb 5, 2026
Search Tags:#data extraction#markdown#web scraping#web crawling#python sdk#css selector#llm extraction
One-click install
npx skills add https://github.com/smallnest/goclaw --skill crawl4ai-smallnest
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: crawl4ai
Source: https://github.com/smallnest/goclaw/tree/main/internal/builtin_skills/crawl4ai-skill
Command: npx skills add https://github.com/smallnest/goclaw --skill crawl4ai-smallnest

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires crawl4ai, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill automates the process of crawling websites, extracting valuable information, and converting it into structured or human-readable formats, saving significant manual effort.

Core Features & Use Cases

  • Web Scraping: Efficiently crawl single or multiple web pages.
  • Data Extraction: Extract structured data using CSS selectors or LLMs.
  • Markdown Generation: Convert web content into clean Markdown.
  • Dynamic Content Handling: Process JavaScript-heavy websites.
  • Use Case: Automatically gather product details from an e-commerce site, extract news articles for summarization, or monitor website changes.

Quick Start

Use the crawl4ai skill to scrape the content from https://example.com and output it as markdown.

Frequently Asked Questions about crawl4ai

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I extract structured data from web pages using Python?▼

You can extract structured data from web pages using the provided Python SDK, which supports both CSS-based and LLM-based extraction strategies to isolate specific content elements.

What is the best way to convert web content into markdown?▼

Converting web content into markdown is handled natively by the SDK, which processes crawled pages and automatically generates clean markdown output for immediate use.

Does this web scraping tool work with JavaScript-heavy websites?▼

Yes, this web scraping tool handles dynamic JavaScript rendering, allowing it to process and extract content from JavaScript-heavy websites effectively.

Can I use LLM extraction for web crawling instead of CSS selectors?▼

Yes, you can use LLM extraction as an alternative to CSS selectors; the SDK supports both strategies, enabling you to choose between structural targeting or AI-driven content parsing.

How do I crawl multiple web pages programmatically in Python?▼

You can crawl multiple web pages programmatically by utilizing the advanced SDK features, which provide programmatic control for crawling operations beyond the included quick-task CLI tools.

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