Crab

Spec sheet

Product

Crab is a desktop SEO crawler for auditing websites.Read 8 Oct 2026 · crab.so

Free plan

YesRead 20 Sep 2026 · crab.so

Integrations

The maker's comparison page lists Google Analytics, Search Console, PageSpeed Insights, and other integrations as “Soon.”Read 8 Oct 2026 · crab.so

Support

The homepage directs users with questions to GitHub.Read 8 Oct 2026 · crab.so

Accessibility

Crab checks items including image alt text, form labels, and heading hierarchy, then assigns each page an accessibility score from 0 to 100.Read 8 Oct 2026 · crab.so

Crawl checks

The audit suite checks broken links, redirects, titles and meta descriptions, robots directives, hreflang, duplicate content, and structured data.Read 8 Oct 2026 · crab.so

Exports

Crab can generate a downloadable XML sitemap of crawled URLs.Read 8 Oct 2026 · crab.so

Installation

The download page offers macOS DMG, Windows EXE, and Linux tar.gz installation instructions; it says the macOS app is signed and notarized by Apple.Read 8 Oct 2026 · crab.so

JavaScript rendering

Crab can render JavaScript sites with headless Chrome, including React, Vue, and other single-page applications.Read 8 Oct 2026 · crab.so

Local processing

Crab processes and stores crawl data on the user's machine, and says crawl data is not sent to its servers or third parties.Read 8 Oct 2026 · crab.so

Open source

Crab is open-source software with source code available on GitHub.Read 8 Oct 2026 · crab.so

Privacy analytics

The desktop app uses PostHog for anonymous product analytics; the policy says these events exclude crawl data, website content, and personally identifiable information.Read 8 Oct 2026 · crab.so

Recurring crawls

Projects can schedule crawls hourly, daily, weekly, or with a custom cron expression and timezone support.Read 8 Oct 2026 · crab.so

Site audit

YesRead 20 Sep 2026 · crab.so

Site structure

Crab maps URL hierarchy and crawl depth, shows page relationships in an interactive link graph, and reports orphan pages.Read 8 Oct 2026 · crab.so

Terms

The terms ask users to crawl only sites they own or have permission to crawl, respect robots.txt and crawl delays, and state the app is provided as-is without warranty.Read 8 Oct 2026 · crab.so

Plans and prices

Every Crab plan and price →

Where Specifiction places it

• SEO Audit Software#10 of 358.2
• Website Audit software#7 of 238.2
• SEO Crawler Software#12 of 348.2
• SEO tools#134 of 2457.7