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Crawl4AI is completely free with 5 features included. No paid tiers offered, making it perfect for budget-conscious users.
Yes. Crawl4AI is released under the Apache 2.0 license, which permits commercial use, modification, and redistribution without fees. The only costs you incur are your own infrastructure and any third-party LLM APIs you choose to plug into the LLM extraction strategy.
Firecrawl is a managed SaaS that handles infrastructure, proxies, and scaling for you behind a paid API. Crawl4AI is an open-source library you self-host, giving you full control, no per-page fees, and the ability to run it offline or behind a corporate firewall. Crawl4AI typically wins on cost and flexibility, while Firecrawl wins on zero-ops convenience.
Yes. It is built on Playwright and ships with an async browser engine that executes JavaScript, supports custom JS injection, virtual scroll handling for feeds like Twitter and Instagram, and waits for dynamic content. Stealth mode and persistent browser profiles help bypass common bot defenses.
Crawl4AI exposes an MCP (Model Context Protocol) server, so Claude Desktop, Cursor, and any MCP-compatible client can call it as a tool. It also integrates natively with LangChain, LlamaIndex, and LiteLLM, and its Markdown output is ready to feed directly into any LLM context window or vector store.
By default it returns smart, filtered Markdown alongside raw HTML, cleaned HTML, extracted media, links, and screenshots. Structured extraction strategies output JSON conforming to user-defined Pydantic schemas, and the library also supports PDF generation and parsing.
It's completely free — no credit card required.
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Last verified March 2026