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! Krawly is completely free. You get 30 free uses per day without signing up. No credit card required.

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?

Krawly is a free web-based platform. All 160+ tools are available directly in your browser with no signup required. You get 30 free uses per day.

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.

SEO Free · no signup

Internal Link Mapper

Map all internal and external links on a page — anchor text, nofollow tags, link depth distribution, and orphan detection.

Updated May 24, 2026

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What is Internal Link Mapper?

The Internal Link Mapper crawls any webpage and maps all internal and external links with their anchor text, nofollow attributes, and link depth distribution. It helps you understand your site's internal linking structure, identify pages with no meaningful anchor text, and optimize link equity flow.

Use cases

SEO audit — analyze internal linking structure to improve crawlability and PageRank flow
Content strategy — find pages that need more internal links for better discoverability
Link equity analysis — identify nofollow links and orphan anchors that waste link value
Site architecture review — visualize link depth distribution across your site
Competitor research — understand how competitor sites structure their internal links

Key features

Internal and external link separation with full URL resolution

Anchor text extraction for every link on the page

Nofollow detection for each link

Unique page count and link depth distribution

Orphan anchor detection (links without meaningful text)

Export to JSON, CSV, or Excel for further analysis

Frequently asked questions

No, it analyzes a single page at a time. For full-site crawling, run the tool on your key pages (homepage, category pages, etc.).

Any link that points to the same domain as the input URL is considered internal. Links to different domains are classified as external.

Image links, icon links, or links wrapping non-text elements often have no visible anchor text. These are flagged as 'orphan anchors' — consider adding aria-labels or descriptive text.