RuboCop vs Qlty Cloud

RuboCop—Visit Qlty Cloud5.0Visit

RuboCop #7 in Ruby Static Analysis Tools —/10 Open source ✓ 2 of 6 features Visit RuboCop

vs

Higher score Qlty Cloud #8 in Ruby Static Analysis Tools 5.0/10 Free plan · paid from $20/mo Free plan✓ 0 of 6 features Visit Qlty Cloud

• RuboCop fits best

  Ruby teams wanting an open-source linter

• Qlty Cloud fits best

  Teams wanting broad quality checks with a free tier

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Side by side

Feature	RuboCop —/10 Visit ↗	Qlty Cloud 5.0/10 Visit ↗
At a glance
Editor score	—	5.0
Ranking	#7 in Ruby Static Analysis Tools	#8 in Ruby Static Analysis Tools
Best for	Ruby teams wanting an open-source linter	Teams wanting broad quality checks with a free tier
Pricing model	Free	Free plan + paid
Starting price	Not published	$20/mo
Free plan	Not published	✓ (best)
Free trial	—	—
Deployment	Self-hosted	Cloud, Browser extension
Support	Docs	Email, Community
Integrations	15 integrations	9 integrations
Built for	Solo, Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features RuboCop 2/6 · Qlty Cloud 0/6
Security analysis	Not published	Not published
Type checking	Not published	Not published
Automated fixes	✓ (best)	Not published
Custom rules	✓ (best)	Not published
Hosted option	Not published	Not published
Self-hosted option	Not published	Not published
Our review
Pros	Configurable cops, custom rules, plugins, and formatter extensions Safe and unsafe autocorrection plus security-focused cops Broad editor, pre-commit, and CI integration options	Free plan includes linting, formatting, coverage, and unlimited contributors Checks pull requests for quality, coverage, maintainability, and security Integrates with GitHub and multiple CI services
Cons	Supports Ruby rather than multiple programming languages Self-hosted deployment leaves infrastructure management to your team Published support channel is limited to documentation	Pro pricing starts at $20 per contributor monthly Shared configurations and analysis trends require a paid plan Cloud-based workflow may not suit teams seeking a different deployment model
Our verdict	RuboCop is an open-source Ruby static code analyzer, linter, and formatter distributed as a Ruby gem. It checks code against configurable cops and community style guidelines, covering style, lint, metrics, naming, and security issues.… Read the review →	Qlty Cloud is a cloud-based code health platform for development teams that want Ruby static analysis alongside checks for other languages. It reviews pull requests for static-analysis issues, coverage impact, maintainability, duplication,… Read the review →

Strengths and trade-offs

• RuboCop — where it wins

  • Configurable cops, custom rules, plugins, and formatter extensions
  • Safe and unsafe autocorrection plus security-focused cops
  • Broad editor, pre-commit, and CI integration options

  Where it doesn't

  • Supports Ruby rather than multiple programming languages
  • Self-hosted deployment leaves infrastructure management to your team
  • Published support channel is limited to documentation

• Qlty Cloud — where it wins

  • Free plan includes linting, formatting, coverage, and unlimited contributors
  • Checks pull requests for quality, coverage, maintainability, and security
  • Integrates with GitHub and multiple CI services

  Where it doesn't

  • Pro pricing starts at $20 per contributor monthly
  • Shared configurations and analysis trends require a paid plan
  • Cloud-based workflow may not suit teams seeking a different deployment model

• RuboCop—/10 · Open source

  A configurable Ruby linter with formatting, security checks, and CI/editor support.

  Visit RuboCopFull verdict →
• Qlty Cloud5.0/10 · Free plan · paid from $20/mo

  A broad cloud analysis suite with a useful free tier and paid team controls.

  Visit Qlty CloudFull verdict →