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Open Source Web Crawlers using JavaScript

A curated collection of the best open source tools for automatically crawling and extracting data from websites. using JavaScript.

Firecrawl

AI
Turn any website into clean, AI-ready data via API

  • Stars

    Stars growing over the last 30 days197,941

  • Last commit

    8 hours ago

  • License

    AGPL-3.0
API for AI agents to search, scrape, crawl, and interact with the live web, returning clean Markdown, structured JSON, or screenshots from any page.

Open Source Alternative to:

Browserbase

Crawl4AI

AI
LLM-ready web crawler built for AI data pipelines

  • Stars

    86,782

  • Last commit

    14 hours ago

  • License

    Apache-2.0
Open-source web crawler and scraper that produces clean, structured output optimized for LLMs, RAG pipelines, and AI agents. Supports async crawling, CSS/XPath/LLM extraction, and stealth browser control.

Open Source Alternative to:

Browserbase
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