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Browser automation
Crawl4AI
Open-source library for fast, concurrent web crawling optimized for AI models.
Overview
A high-performance, open-source alternative to commercial scrapers. Crawl4AI uses async architecture to crawl many pages concurrently and outputs clean HTML/Markdown for LLM consumption. It is self-hostable and free.
Best for
- High-volume data ingestion
- Self-hosted AI pipelines
Trade-offs
vs Firecrawl
Crawl4AI is open-source and self-hosted (requires server maintenance); Firecrawl is a managed API (easier but costs money).
What XeroHack pre-wires
When you pick Crawl4AI in the interview, the engine emits these files into your scaffold:
- AsyncIO Python
- LLM extraction strategies
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