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.

Does it actually send an email to verify?

No, the tool performs DNS-level validation (format check, MX record lookup, disposable detection). It does not send test emails.

How accurate is the deliverability score?

The score reflects format validity, DNS health, and provider type. It's a good indicator but cannot guarantee delivery since server-side rules vary.

What is a disposable email?

Disposable emails are temporary addresses from services like Mailinator, Guerrilla Mail, and Tempail. They're commonly used to bypass sign-up requirements.

Back to all tools

Email Validator

Utilities

Validate email addresses — check format, MX records, disposable/free provider detection, and deliverability score.

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

Use via API

Email Validator — cURL

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

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What is Email Validator?

The Email Validator checks email addresses for format correctness, domain validity, MX record existence, and whether the address belongs to a disposable or free email provider. It returns a deliverability score from 0 to 100 to help you assess email quality.

Use Cases

Email list cleaning — validate addresses before sending campaigns to reduce bounce rates
Lead qualification — verify that contact emails are real and deliverable
Sign-up form validation — check emails in real-time before accepting registrations
Fraud prevention — detect disposable and temporary email addresses
CRM data hygiene — clean up existing contact databases