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.

YouTube SEO: How to Extract Tags, Subtitles & Comments from Any Video

Why YouTube Data Matters for SEO

YouTube is the second largest search engine. Analyzing competitor videos can reveal:

Keywords they target (via tags)

Content topics that engage (via comments)

Accessibility and localization (via subtitles)

Extract YouTube Tags

Tags are hidden metadata that influence YouTube search rankings.

1. Go to YouTube Tags Extractor

2. Paste any YouTube video URL

3. See all tags the creator used

Pro tip: Use popular video tags as inspiration for your own uploads.

Extract YouTube Subtitles

Subtitles reveal the full content of a video — perfect for repurposing.

1. Go to YouTube Subtitle Extractor

2. Paste the video URL

3. Download as SRT, VTT, JSON, or plain text

Use cases:

Create blog posts from video content

Translate content for international audiences

Search through video transcripts for research

Extract YouTube Comments

Comments reveal what the audience thinks and wants.

1. Go to YouTube Comments Extractor

2. Paste the video URL

3. Get all comments with like counts and reply counts

Use cases:

Sentiment analysis

Find FAQ ideas from viewer questions

Identify content gaps from viewer requests

Bonus: Analyze Channels and Thumbnails

YouTube Channel Analyzer — subscriber count, recent uploads, channel metadata

YouTube Thumbnail Extractor — get thumbnails in all resolutions for A/B testing inspiration

YouTube Shorts Analyzer — engagement metrics for Shorts

All tools are free on Krawly.io — no signup required.

YouTube SEO: How to Extract Tags, Subtitles & Comments from Any Video

Why YouTube Data Matters for SEO

Extract YouTube Tags

Extract YouTube Subtitles

Extract YouTube Comments

Bonus: Analyze Channels and Thumbnails

Try All 170+ Free Tools

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