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.

Social Media Free · no signup

Engagement Rate Calculator

Calculate your social media engagement rate from followers, likes, comments, and shares. Get benchmarks for all platforms.

Updated May 24, 2026

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Discover 160+ free tools for web scraping, SEO analysis, OSINT, and more. 30 free uses every day — no signup required.

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160+ Free Tools No Signup Required JSON / CSV / Excel 30 Uses / Day

What is Engagement Rate Calculator?

The Engagement Rate Calculator is a free tool that calculates your social media engagement rate from basic metrics. Enter your followers, likes, comments, and shares to get an instant engagement percentage with platform-specific benchmarks for TikTok, Instagram, Twitter, YouTube, LinkedIn, and Facebook.

Use cases

Influencer vetting — evaluate creator engagement before partnerships
Campaign performance — measure post and campaign engagement rates
Competitive benchmarking — compare your engagement against industry averages
Growth tracking — monitor engagement rate changes over time
Sponsorship pricing — justify rates with documented engagement metrics

Key features

Instant engagement rate calculation from followers, likes, comments, and shares

Rating system — Excellent, Good, Average, or Below Average classification

Platform-specific benchmarks for TikTok, Instagram, Twitter, YouTube, LinkedIn, and Facebook

Engagement composition breakdown (likes vs comments vs shares)

Export results as JSON, CSV, or Excel

Frequently asked questions

Engagement rate = (likes + comments + shares) ÷ followers × 100. This is the standard social media engagement formula.

It varies by platform. On Instagram, 3%+ is good. On TikTok, 6%+ is excellent. On Twitter, 1%+ is above average.

Yes! Just enter your metrics from any platform — the formula works universally.

Char Counter

Check your text against character limits for Twitter, Instagram, TikTok, LinkedIn, YouTube, Facebook, Pinterest, and Threads.

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Social Media

Post Formatter

Format and optimize your text for Twitter, Instagram, TikTok, LinkedIn, YouTube, and Facebook with platform-specific formatting.

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Social Media

Hashtag Gen

Generate trending hashtags for Instagram, TikTok, YouTube, and Twitter from any keyword.

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Social Media

Shorts Analyzer

Analyze YouTube Shorts — views, likes, engagement rate, channel info, tags, and categories.

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OSINT

Username OSINT

Search for a username across 18+ social platforms — find GitHub, Twitter, Instagram, TikTok, YouTube profiles and more.

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OSINT

Owner Finder

Find who owns and operates a website — WHOIS data, contact emails, analytics codes, CMS platform, and social media profiles.

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Looking for something specific? Browse all 158 Krawly tools

Engagement Rate Calculator

Explore More Free Tools

What is Engagement Rate Calculator?

Use cases

Key features

Frequently asked questions

Related tools & similar free utilities

Char Counter

Post Formatter

Hashtag Gen

Shorts Analyzer

Username OSINT

Owner Finder