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Head-to-head · Ruby Static Analysis Tools

RuboCop vs Qlty Cloud

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
RuboCop #7 in Ruby Static Analysis Tools 7.9/10 Open source ✓ 2 of 6 features Visit RuboCop
Qlty Cloud #8 in Ruby Static Analysis Tools 7.9/10 Free plan Free plan✓ 0 of 6 features Visit Qlty Cloud

RuboCop leads on 0 checks, Qlty Cloud on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Free planonly Qlty Cloud
  • Most featuresRuboCop · 2 of 6

RuboCop and Qlty Cloud score identically on our rubric (7.9 out of 10) for ruby static analysis tools; RuboCop sits at #7 and Qlty Cloud at #8 in our editorial ranking, so the choice comes down to fit.

RuboCop is the better fit for ruby teams wanting an open-source linter. Qlty Cloud is the better fit for teams wanting broad quality checks with a free tier.

  • RuboCop fits best

    Ruby teams wanting an open-source linter

  • Qlty Cloud fits best

    Teams wanting broad quality checks with a free tier

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature RuboCop 7.9/10 Visit ↗ Qlty Cloud 7.9/10 Visit ↗
At a glance
Editor score 7.9 7.9
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 Open source $20/user/mo
Free plan Not checked yet ✓ (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 checked yet Not checked yet
Type checking Not checked yet Not checked yet
Automated fixes ✓ (best) Not checked yet
Custom rules ✓ (best) Not checked yet
Hosted option Not checked yet Not checked yet
Self-hosted option Not checked yet Not checked yet
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 →
  1. RuboCopRuby Static Analysis Tools 7.9Open source
  2. Qlty CloudRuby Static Analysis Tools 7.9Free plan

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

More comparisons

All ruby static analysis tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update