Audisto vs Crab

Audisto7.9Visit Crab7.9Visit

Audisto #4 in SEO Crawler Software 7.9/10 Paid ✓ 1 of 6 features Visit Audisto

vs

Crab #5 in SEO Crawler Software 7.9/10 Free plan Free plan✓ 0 of 6 features Visit Crab

• Audisto fits best

  Large sites needing cloud crawl monitoring

• Crab fits best

  Free users auditing JavaScript-heavy sites

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Side by side

Feature	Audisto 7.9/10 Visit ↗	Crab 7.9/10 Visit ↗
At a glance
Editor score	7.9	7.9
Ranking	#4 in SEO Crawler Software	#5 in SEO Crawler Software
Best for	Large sites needing cloud crawl monitoring	Free users auditing JavaScript-heavy sites
Pricing model	Paid	Free
Starting price	—	Free plan
Free plan	—	✓ (best)
Free trial	—	—
Deployment	Cloud	Desktop
Platforms	Web	Windows, macOS, Linux
Support	Email, Phone, Docs	Community
Built for	Mid-market, Enterprise	Solo, Small business
Features Audisto 1/6 · Crab 0/6
JavaScript rendering	Not checked yet	Not checked yet
Scheduled crawls	Not checked yet	Not checked yet
Log-file analysis	Not checked yet	Not checked yet
Mobile crawling	Not checked yet	Not checked yet
Custom data extraction	Not checked yet	Not checked yet
API access	✓ (best)	Not checked yet
Specs
Crawl limit	10000 URLs/crawl	Not checked yet
Our review
Pros	Unlimited scheduled crawls with JavaScript rendering and execution Historical trends, structure analysis, and technical SEO audits Monitoring adds hourly crawls, alerts, automated tests, and API access	Free crawling with no URL limits or subscriptions JavaScript rendering, hreflang, structured-data, and accessibility checks Recurring crawls, sitemap generation, and hierarchy visualization
Cons	No free plan; access is limited to paid offerings Enterprise-focused scope may exceed smaller site requirements Monthly pricing is shown without a currency symbol	Desktop-local workflow may not suit browser-based collaboration Focused on technical audits rather than a complete SEO suite Keyword research, rank tracking, and backlink analysis are outside its stated focus
Our verdict	Audisto is a cloud-based technical SEO crawler and website monitoring platform for professional and enterprise teams managing large websites. It analyzes crawlability, indexation, on-page criteria, content quality, JavaScript-rendered… Read the review →	Crab is a free desktop SEO crawler for technical site audits on Windows, macOS, and Linux. It crawls websites locally and is aimed at SEO professionals, students, solo founders, and others who need occasional or private audits. Its… Read the review →

Strengths and trade-offs

• Audisto — where it wins

  • Unlimited scheduled crawls with JavaScript rendering and execution
  • Historical trends, structure analysis, and technical SEO audits
  • Monitoring adds hourly crawls, alerts, automated tests, and API access

  Where it doesn't

  • No free plan; access is limited to paid offerings
  • Enterprise-focused scope may exceed smaller site requirements
  • Monthly pricing is shown without a currency symbol

• Crab — where it wins

  • Free crawling with no URL limits or subscriptions
  • JavaScript rendering, hreflang, structured-data, and accessibility checks
  • Recurring crawls, sitemap generation, and hierarchy visualization

  Where it doesn't

  • Desktop-local workflow may not suit browser-based collaboration
  • Focused on technical audits rather than a complete SEO suite
  • Keyword research, rank tracking, and backlink analysis are outside its stated focus

• Audisto7.9/10 · Paid

  A cloud crawler for large sites that combines technical audits, monitoring, and API access.

  Visit AudistoFull verdict →
• Crab7.9/10 · Free plan

  A free desktop crawler with unusually broad JavaScript-aware technical audits.

  Visit CrabFull verdict →