Are there any web data scrapers that offer real-time data extraction?

Yes—there are web data scrapers and scraping platforms that support real-time or near-real-time extraction, though “real-time” usually means on-demand, continuously updated, or event-triggered rather than millisecond-level streaming.

Common options

• Bright Data – offers scraping APIs and proxy infrastructure with fast refresh/rotation; can be used for near-real-time collection.
• Apify – supports scheduled and actor-based scraping, webhooks, and integrations for frequent or triggered updates.
• Zyte – provides automated extraction APIs and can be used for continuous data collection.
• ScrapingBee / Oxylabs / Smartproxy – mainly scraping APIs/proxies that can be used in workflows requiring frequent updates.
• Diffbot – structured extraction API, useful when you want repeated extraction from live pages.
• Custom scraper + scheduler/webhooks – often the best way to achieve truly near-real-time behavior by polling pages or listening for site changes.

Important caveats

• Many websites block aggressive polling, so “real-time” extraction can be limited by rate limits, anti-bot defenses, and legal/ToS restrictions.
• If you need genuinely immediate updates, a change-detection system or official API/webhook is often better than traditional scraping.
• The best tool depends on whether you need:
  • single-page instant extraction
  • continuous monitoring
  • frequent polling
  • large-scale data pipelines

If you want, I can recommend the best tools based on your use case (e.g. e-commerce prices, job listings, social media, news, etc.).