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.

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Accessibility Checker

Check WCAG compliance with 14 automated accessibility audits and scoring.

Updated May 24, 2026

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What is Accessibility Checker?

The Accessibility Checker performs 14 automated WCAG 2.1 accessibility audits on any webpage and provides an overall scorecard with a letter grade (A–F). It checks HTML lang attributes, viewport settings, alt text, heading structure, ARIA labels, form labels, link text, color contrast hints, skip navigation, and more — helping you identify and fix accessibility barriers.

Use cases

Compliance auditing — check WCAG 2.1 conformance for legal and regulatory requirements
Website QA — integrate accessibility checks into your development workflow
Client reporting — generate accessibility scorecards for client websites
Competitive benchmarking — compare accessibility scores across competitor sites
Remediation planning — prioritize fixes based on error severity and WCAG criteria

Key features

14 automated WCAG 2.1 checks covering Perceivable, Operable, Understandable, and Robust principles

Overall accessibility score (0–100) with letter grade A–F

Error vs. warning classification with WCAG criterion references

Checks: lang, viewport, title, img alt, headings, form labels, ARIA, links, contrast hints, skip nav, tables, iframes, buttons, inputs

Actionable issue descriptions with recommended fixes

Frequently asked questions

The tool checks against WCAG 2.1 Level A and AA success criteria.

It identifies potential contrast issues by checking for small font sizes and inline color styles. A full pixel-level contrast audit requires manual testing.

Automated checks catch about 30-40% of accessibility issues. A complete audit also requires manual testing with assistive technologies (screen readers, keyboard navigation).