Crawler.sh

Turn any website into AI-ready Markdown—locally, freely, without headless Chrome.

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Added Jul 2026

crawler.sh

Technical SeoFreetechnical-seo

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What is Crawler Sh?

Crawler.sh is a local-first web crawler that converts websites into RAG-ready Markdown without cloud costs or API quotas. It renders JavaScript using a custom engine (handling React, Vue, Next), respects robots.txt with adaptive pacing, and runs entirely on your laptop. Built for AI teams needing clean, structured content for training, fine-tuning, and agent context.

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Key Features of Crawler Sh

JavaScript rendering for SPAs without headless Chrome
Robots.txt compliance with adaptive pacing
RAG-ready Markdown extraction with metadata
Automated SEO analysis across 16+ categories
Bulk site export as Markdown archive
Sitemap XML generation (W3C-compliant)
Broken link detection and content freshness signals
CSV/TXT export for SEO issues
NDJSON and JSON output formats
Local processing—no cloud dependency

Who Should Use Crawler Sh?

Archive website content for backups and migrations

Prepare training data for AI models and fine-tuning

Feed context into AI agents

Audit SEO issues before site launch

Monitor sites for broken links and status changes

Generate accurate sitemaps from live crawls

Extract article content for content pipelines

Crawler Sh: Pros & Cons

✓Pros

Runs completely local—no cloud costs or per-page fees
No API quotas or rate limits
Handles complex SPAs with custom JavaScript engine
Respects robots.txt and implements polite crawling
Automatic adaptive pacing prevents server overload
Chrome 131 TLS fingerprint and cookie jar for session-walled pages
Comprehensive SEO analysis (16+ automated checks)
Free plan available with 50-page limit
One subscription covers both CLI and desktop app

✕Cons

Free tier limited to 50 pages per session
Pro tier costs $99/year but may be expensive for large-scale operations
No mention of support for all programming languages or frameworks

Frequently Asked Questions about Crawler Sh

Does Crawler.sh require a cloud account or API key?

No. Crawler.sh runs entirely locally on your laptop with no account required for the free plan. It processes websites without sending data to external servers.

Can Crawler.sh handle JavaScript-heavy websites?

Yes. It uses a custom JavaScript rendering engine that handles React, Vue, Next.js, and other SPAs without needing headless Chrome.

What formats can I export crawled content in?

Free plan supports JSON and Sitemap XML. Pro plan adds NDJSON and Markdown content extraction with full SEO analysis exports in CSV or TXT.

How many pages can I crawl?

The free plan allows up to 50 pages per session. Pro ($99/year) allows up to 10,000 pages per session.

Does it respect website crawling rules?

Yes. Crawler.sh respects robots.txt directives (Disallow, Allow, Crawl-delay) and uses adaptive pacing to avoid overloading servers.