Node.js Web Scraping API
AlterLab is a web scraping API for Node.js and TypeScript. One fetch() call returns clean HTML, Markdown, or structured JSON from any website — automatic website compatibility, JavaScript rendering, and proxy rotation included. Starts at $0.0002/request with an official TypeScript SDK.
Simple API, Powerful Results
Get started in minutes with our intuitive API. One request gives you structured data, screenshots, PDFs, and more. No browser management, no infrastructure headaches.
Multi-Format Output
Markdown, JSON, HTML, text
Adaptive Rendering
JS, SPAs, shadow DOM
3 Lines to Integrate
Any language, any stack
Up to 5,000 free scrapes included. No credit card required.
Built for Node.js and TypeScript Developers
Full TypeScript types, ESM and CJS builds, async/await support out of the box.
Full TypeScript Support
Complete type definitions for all request and response shapes. No @types packages needed.
ESM + CJS Builds
Works in Node.js 18+, Bun, Deno, and any bundler. Both ESM import and CommonJS require supported.
Async/Await Native
All SDK methods return Promises. Use async/await or Promise chains — fully compatible with Node.js event loop.
Automatic Compatibility
Handles JavaScript-heavy SPAs, challenge pages, and dynamic content without managing browsers or proxies.
Works in Any Node.js Environment
From serverless functions to Express backends — AlterLab handles the complexity.
Next.js Data Fetching
Fetch live web data directly in Server Components and API routes with automatic compatibility handling.
Serverless Functions
Run scrapers in AWS Lambda, Vercel Edge, or Cloudflare Workers — no headless browser setup required.
Express API Backends
Power data-driven endpoints with real-time web extraction from any public source.
Automation & Workflows
Integrate with n8n, Make, or custom Node.js pipelines for scheduled data collection.
Best Value in the Market
Pay-as-you-go from $0.0002/request. No subscriptions, balance never expires.
Why Teams Switch to AlterLab
Smart routing, no subscriptions, balance that never expires
| Feature | AlterLab You are here | ScraperAPI | Bright Data | Firecrawl |
|---|---|---|---|---|
Avg cost (real workload) Smart routing vs flat rate | ~$0.001 | $0.00049/credit | $0.0015 | $0.0063 |
Simple scrape Basic HTTP request | $0.0002 | $0.00049 | $0.0015 | $0.0063 |
JS rendering Full browser render | $0.004 | $0.0049 | $0.0015 | $0.0063 |
Free tier Free requests to start | Up to 5,000 scrapes | 5,000 credits | None | 500 scrapes |
Minimum Smallest purchase | $10 one-time | $49/month | $0 (PAYG) / $499/mo (subscription) | $19/month |
Balance expires? Does unused balance expire | Never | Monthly | Never (prepaid) / Monthly (subscription) | Monthly |
CAPTCHA solving Built-in CAPTCHA bypass | $0.02/solve | Extra cost | Extra cost | Not available |
Avg cost based on typical content/SEO workload (75% simple, 25% protected). Competitor prices from public pricing pages, March 2026.
Frequently Asked Questions
JavaScript Rendering Resources
Web Scraping with Node.js & Puppeteer
Complete guide to headless browser scraping with Node.js.
Node.js Scraping: Puppeteer vs Playwright
When to use Puppeteer, Playwright, or a scraping API.
Why Headless Browsers Get Detected
Common detection vectors and how to fix them.
Python Web Scraping API
5,000 free scrapes with Python SDK. No credit card required.
Your first scrape.
Sixty seconds.
$1 free balance. No credit card. No SDK.
Just a POST request.
No credit card required · Up to 5,000 free scrapes · Balance never expire