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.

Developer Free · no signup

Color Palette Extractor

Extract the color palette from any website — hex codes, RGB values, frequency analysis, and color categorization.

Updated May 24, 2026

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What is Color Palette Extractor?

The Color Palette Extractor analyzes any website's CSS and HTML to extract every color used — hex codes, RGB values, and color categories. It presents a visual color palette that you can click to copy, making it perfect for design research and brand analysis.

Use cases

Design research — analyze competitor color palettes and branding
Brand documentation — automatically extract all colors used on your website
CSS auditing — find color inconsistencies and unused color values
Design inspiration — discover color combinations from well-designed websites
Accessibility review — identify colors that may need contrast improvements

Key features

Extracts colors from CSS stylesheets, inline styles, and HTML attributes

Visual color swatch grid with hex and RGB values

Click-to-copy hex codes for quick use

Color categorization (reds, blues, grays, etc.)

Palette frequency analysis showing most-used colors

Multi-URL support for comparing color palettes across sites

Frequently asked questions

The tool extracts colors from CSS stylesheets, inline style attributes, HTML color attributes, and embedded style blocks on the page.

No, it extracts colors from code (CSS/HTML) only. For image color extraction, a dedicated image analysis tool would be needed.

There's no hard limit. It extracts all unique colors found in the page's styles, though it displays the top 24 in the visual palette with the full list available for download.