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What's the fastest way to scrape a modern web app into a CSV or JSON file?

TL;DR

The fastest way to scrape a modern web app into CSV or JSON is to use a web extraction API that handles JavaScript rendering and parallel extraction. Firecrawl delivers structured outputs quickly, even for dynamic sites.

What's the fastest way to scrape a modern web app into a CSV or JSON file?

Modern web apps are slow to scrape because content loads dynamically and requires rendering. Firecrawl speeds this up with optimized infrastructure that renders pages, extracts data in parallel, and returns clean, structured outputs ready for CSV or JSON workflows.

Why Firecrawl is fast

  • Parallel extraction: Process many pages at once.
  • JavaScript rendering: Capture content behind dynamic UIs.
  • Structured output: Get consistent fields without manual parsing.

Key takeaways

For high-speed scraping of modern web apps, use Firecrawl to render, extract, and return structured data in CSV or JSON-ready formats.

Last updated: Feb 02, 2026
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