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Head-to-head · Ruby Static Analysis Tools

Semgrep Assistant vs RuboCop

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Semgrep Assistant #6 in Ruby Static Analysis Tools 8.0/10 Free plan Free plan✓ 2 of 6 features Visit Semgrep
RuboCop #7 in Ruby Static Analysis Tools 7.9/10 Open source ✓ 2 of 6 features Visit RuboCop

Semgrep Assistant leads on 0 checks, RuboCop on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSemgrep Assistant · 8.0/10
  • Free planonly Semgrep Assistant

Semgrep Assistant scores higher on our rubric for ruby static analysis tools: 8.0 against 7.9 out of 10; our editors rank them #6 and #7.

Semgrep Assistant is the better fit for teams wanting configurable security rules and AI triage. RuboCop is the better fit for ruby teams wanting an open-source linter.

  • Semgrep Assistant fits best

    Teams wanting configurable security rules and AI triage

  • RuboCop fits best

    Ruby teams wanting an open-source linter

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Side by side

Feature Semgrep Assistant 8.0/10 Visit ↗ RuboCop 7.9/10 Visit ↗
At a glance
Editor score 8.0 7.9
Ranking #6 in Ruby Static Analysis Tools #7 in Ruby Static Analysis Tools
Best for Teams wanting configurable security rules and AI triage Ruby teams wanting an open-source linter
Pricing model Free plan + paid Free
Starting price — Open source
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Cloud, Self-hosted Self-hosted
Support Community, Docs Docs
Integrations 7 integrations 15 integrations
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Semgrep Assistant 2/6 · RuboCop 2/6
Security analysis ✓ (best) Not checked yet
Type checking — Not checked yet
Automated fixes Not checked yet ✓ (best)
Custom rules ✓ ✓
Hosted option Not checked yet Not checked yet
Self-hosted option Not checked yet Not checked yet
Our review
Pros
  • AI-assisted finding prioritization, triage, and remediation guidance
  • Custom analysis rules and AI-generated rules
  • CI/CD scanning with GitHub, GitLab, Jenkins, and other integrations
  • Configurable cops, custom rules, plugins, and formatter extensions
  • Safe and unsafe autocorrection plus security-focused cops
  • Broad editor, pre-commit, and CI integration options
Cons
  • Ruby-specific capabilities are less clear than Python support
  • Assistant works alongside Semgrep analysis, not as a standalone checker
  • Some plan features are split across separate Teams editions
  • Supports Ruby rather than multiple programming languages
  • Self-hosted deployment leaves infrastructure management to your team
  • Published support channel is limited to documentation
Our verdict

Semgrep Assistant is an AI feature in the Semgrep AppSec Platform for security and development teams handling code-security findings. It helps prioritize and triage findings, generate custom rules, and guide remediation in developer…

Read the review →

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 →
  1. Semgrep AssistantRuby Static Analysis Tools 8.0Free plan
  2. RuboCopRuby Static Analysis Tools 7.9Open source

Strengths and trade-offs

  • Semgrep Assistant — where it wins

    • AI-assisted finding prioritization, triage, and remediation guidance
    • Custom analysis rules and AI-generated rules
    • CI/CD scanning with GitHub, GitLab, Jenkins, and other integrations

    Where it doesn't

    • Ruby-specific capabilities are less clear than Python support
    • Assistant works alongside Semgrep analysis, not as a standalone checker
    • Some plan features are split across separate Teams editions

  • 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

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