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Head-to-head · Ruby Static Analysis Tools

GitHub CodeQL vs Qlty Cloud

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score GitHub CodeQL #3 in Ruby Static Analysis Tools 8.4/10 Free plan Free plan✓ 2 of 6 features Visit GitHub CodeQL
Qlty Cloud #8 in Ruby Static Analysis Tools 7.9/10 Free plan Free plan✓ 0 of 6 features Visit Qlty Cloud

GitHub CodeQL leads on 0 checks, Qlty Cloud on 1, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreGitHub CodeQL · 8.4/10
  • Lowest starting priceQlty Cloud · $20/user/mo
  • Free planboth
  • Most featuresGitHub CodeQL · 2 of 6

GitHub CodeQL scores higher on our rubric for ruby static analysis tools: 8.4 against 7.9 out of 10; our editors rank them #3 and #8.

Qlty Cloud is cheaper to start at $20/mo against $30/mo.

GitHub CodeQL is the better fit for gitHub-centric teams needing semantic security analysis. Qlty Cloud is the better fit for teams wanting broad quality checks with a free tier.

  • GitHub CodeQL fits best

    GitHub-centric teams needing semantic security analysis

  • 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 GitHub CodeQL 8.4/10 Visit ↗ Qlty Cloud 7.9/10 Visit ↗
At a glance
Editor score 8.4 7.9
Ranking #3 in Ruby Static Analysis Tools #8 in Ruby Static Analysis Tools
Best for GitHub-centric teams needing semantic security analysis Teams wanting broad quality checks with a free tier
Pricing model Free plan + paid Free plan + paid
Starting price $30/user/mo $20/user/mo (best)
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop Cloud, Browser extension
Platforms Web, Windows, macOS, Linux Web, Chrome extension
Support Docs Email, Community
Integrations 4 integrations 9 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features GitHub CodeQL 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
  • Data-flow and taint analysis can surface vulnerability paths.
  • Custom queries and standard packs support tailored analysis.
  • Pull-request alerts integrate with GitHub code scanning.
  • 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
  • Commercial private-repository use requires GitHub security licensing.
  • Paid GitHub Code Security costs $30 per active committer monthly.
  • Ruby-specific language support is not clearly identified.
  • 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

GitHub CodeQL analyzes source code by turning a codebase into a database and running semantic queries against it. It is aimed at teams that need to detect vulnerabilities, errors, and data-flow problems, particularly those already working…

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. GitHub CodeQLRuby Static Analysis Tools 8.4Free plan
  2. Qlty CloudRuby Static Analysis Tools 7.9Free plan

Strengths and trade-offs

  • GitHub CodeQL — where it wins

    • Data-flow and taint analysis can surface vulnerability paths.
    • Custom queries and standard packs support tailored analysis.
    • Pull-request alerts integrate with GitHub code scanning.

    Where it doesn't

    • Commercial private-repository use requires GitHub security licensing.
    • Paid GitHub Code Security costs $30 per active committer monthly.
    • Ruby-specific language support is not clearly identified.

  • 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