Krawly.io is a free online platform that provides 160+ web scraping, SEO analysis, security auditing, and developer tools. It allows users to extract data from websites, analyze SEO performance, check security headers, detect technologies, scrape YouTube data, generate leads, and much more — all without requiring signup or installation.

Is Krawly free to use?

Yes! You get 10 free uses per week without signing up. Create a free account to get 100 credits as a signup bonus, or upgrade to a paid plan starting at $9/month for 1,000 credits.

Do I need to install anything?

No installation needed. All 160+ tools run directly in your browser with no downloads or setup required. There is also a REST API and a Chrome extension for advanced users.

What data formats can I export?

All tools support JSON, CSV, and Excel (XLS) export. The screenshot tool provides PNG images. API responses are in JSON format.

How does the Krawly API work?

After signing up, you get an API key from your dashboard. The REST API accepts JSON POST requests and returns structured data. All 160+ tools are available via the API at https://krawly.io/api/v1/tools/.

What types of tools does Krawly offer?

Krawly offers tools in 11 categories: SEO (meta tag validator, heading analyzer, keyword density, core web vitals), Web Scraping (email scraper, table extractor, CSS selector scraper), Security (SSL checker, port scanner, WordPress scanner), OSINT (DNS lookup, WHOIS, IP geolocation), E-Commerce (Amazon scraper, Shopify scraper, price tracker), YouTube (comments scraper, playlist extractor, thumbnail downloader), Developer (JSON formatter, regex tester, JWT decoder), Content (word counter, readability score), Analysis (technology detector, page speed analyzer), Social Media (TikTok analyzer, Instagram analyzer), and Utilities (QR code generator, URL shortener).

Is Krawly a good alternative to SEMrush, Ahrefs, or BuiltWith?

Krawly provides many of the same on-page SEO analysis features as SEMrush and Ahrefs for free, including meta tag validation, heading analysis, keyword density checking, and structured data auditing. For technology detection, it serves as a free alternative to BuiltWith and Wappalyzer. However, Krawly focuses on individual page analysis rather than domain-wide crawling or backlink databases.

Can I use Krawly for lead generation?

Yes. Krawly's Lead Generation tool automatically crawls a website's homepage, about, contact, and team pages to extract email addresses, phone numbers, LinkedIn profiles, Twitter handles, Facebook pages, Instagram accounts, and GitHub links. Results can be exported as JSON, CSV, or Excel.

Which e-commerce platforms does it support?

It works best with Shopify, WooCommerce, and any site using Schema.org Product markup. It also extracts from standard HTML select elements on any platform.

Why does it find no variants?

Some product pages load variants via JavaScript AJAX calls without including them in the initial HTML or structured data. In those cases, the extractor may not find them.

Does it handle product bundles?

It focuses on individual product variants (sizes, colors, options). Bundle products with separate sub-products may be partially extracted depending on the site's markup.

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E-commerce Variant Extractor

E-Commerce

Extract product variants, sizes, colors, option types, and price ranges from any e-commerce product page.

Unlock Full Power with Krawly Pro

Get access to all 150+ tools with higher limits. Start with 100 free credits — no credit card required.

Use via API

E-commerce Variant Extractor — cURL

curl -X POST "https://krawly.io/api/v1/tools/variant-extractor/" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{"url": "https://example.com"}'

Get 100 Free Credits View Pricing Plans API Docs

150+ Tools Full API Access Bulk Processing Priority Support

What is E-commerce Variant Extractor?

The E-commerce Variant Extractor scrapes product variants (sizes, colors, options) from any e-commerce product page. It supports Schema.org/JSON-LD structured data, Shopify product JSON, and standard HTML select elements to find all available product options and their prices.

Use Cases

Price comparison — extract all variant prices from competitor product pages
Inventory research — check which sizes/colors are in stock across stores
Product catalog building — scrape variant data for product feeds and comparisons
Market research — analyze pricing strategies across product variants
Dropshipping — identify available variants and pricing for product sourcing