JAVASCRIPT RENDERING

JavaScript Rendering Scraper API for Dynamic Sites

Stealth headless-browser rendering for SPAs, infinite scroll, and lazy-loaded content on this AI-ready web scraper API, set one parameter, no extra cost on top of base request credits.

When You Need JavaScript Rendering

A plain HTTP request only gets the initial HTML. Sites that build their content client-side need a real browser to render first.

Single-Page Apps

React, Vue, and Angular sites that render content after the initial page load.

Infinite Scroll

Content that loads progressively as a user scrolls, rather than on initial page load.

Lazy-Loaded Images & Data

Elements that only populate once they enter the viewport or an API call resolves.

Client-Side Routing

Pages that change URL and content without a full server round-trip.

Dynamic Pricing Widgets

Price and availability data injected via JavaScript after page load.

No Extra Credit Cost

Rendering is a request parameter, not a separate billing tier.

How Rendering Works

1

Set render_js to true

Add one parameter to your request, no browser setup or session management on your end.

2

A real browser loads the page

JavaScript executes fully, including async content and client-side routing.

3

Get the rendered result

HTML, Markdown, plain text, or a screenshot of the fully-loaded page, not just the initial response.

One Parameter, Fully Rendered

REQUEST
curl -X POST https://scrapebadger.com/v1/web/scrape \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"url": "https://example.com", "render_js": true}'
headless browser → JS executed → RENDERED

JavaScript Rendering Questions

What is a JavaScript rendering scraper API?+

It's a scraping API that loads a page in a real browser environment before returning it, so JavaScript-driven content, the kind that doesn't appear in a plain HTTP response, is included in the result.

How do I know if a site needs JS rendering?+

If viewing a page's raw HTML source shows little or no content while the browser displays a full page, that site is rendering content client-side and needs render_js: true.

Does JavaScript rendering cost more credits?+

No, it's a request parameter, not a separate pricing tier. The same credit rate applies whether or not rendering is enabled.

Can I combine JS rendering with anti-bot bypass and a specific country?+

Yes, render_js, anti-bot bypass, and geo-targeting all work together on the same request without any additional configuration.

Start Scraping in Minutes

1,000 free credits, no credit card required. Failed requests cost 0 credits.