vioscaleAI
Comparison

Qlty vs RuboCop

On the evidence we track, RuboCop leads this comparison with a composite score of 64/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Qlty full profile →RuboCop full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Qlty54
★RuboCop64
Score
vioscaleAI score
Qlty54 / 100low · 49%
RuboCop64 / 100medium · 50%
Pricing
Free tier
Qlty✓
RuboCop✓
Model
Price level
Qltymid
RuboCopfree
Starting price
Qlty$20
RuboCop–
Transparent
Qlty✓
RuboCop✓
Integrations
Count
Qlty6
RuboCop14
Security
Certifications
QltySOC 2 Type II
RuboCop–
Scorecard
Qlty–
RuboCop5.1
Soc2
Qlty✓
RuboCop–
Vulnerabilities
Reliability
Status page
Qlty✓
RuboCop–
Adoption
Dependent repos
Qlty0
RuboCop115,529
Github stars
Qlty3,186
RuboCop12,913
Activity
Commits last 30d
Qlty45
RuboCop100
Release
Cadence days
Qlty2
RuboCop16
History
Qlty20 items
RuboCop20 items
License
Spdx
Qlty–
RuboCopMIT
Language
Primary
QltyC
RuboCopRuby
Market
Availability
Content
Faq
Qlty7 items
RuboCop5 items

Capabilities

Feature-by-feature on the axes that matter for code quality tools. “-” means undocumented, not absent.

Core
Function
QltyQuality platform
RuboCopLinter + formatter
Language scope
QltyMulti-language
RuboCopSingle-language
Implementation language
QltyRust
RuboCopRuby
Capability
Autofix
Qlty✓
RuboCop✓
Config
Config model
QltyConfig file
RuboCopConfig file
Extensibility
Custom rules
Qlty✓
RuboCop✓
Deployment
Deployment
QltyBoth
RuboCopCLI-local
Delivery
Editor integration
Qlty✓
RuboCop✓
CI / VCS gating
Qlty✓
RuboCop✓
Insight
Code metrics
Qlty✓
RuboCop✓
Performance
Incremental / monorepo aware
Qlty✓
RuboCop-
Licensing
Open-source
QltyOpen-core
RuboCopOSS
Commercial
Pricing model
QltyPer-contributor
RuboCopFree

What each one is

The product in its own terms, so the numbers below have context.

Qlty

A code quality and coverage platform combining linting, auto-formatting, security scanning, duplication detection, and code coverage analysis with AI-powered fix suggestions, deployed as a cloud service with a local CLI.

Independently observed

RuboCop

Leader

An open-source linter and formatter for Ruby that enforces the community style guide, identifies potential bugs, and can automatically correct many issues.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Qlty

from $20/contributor/moHybridFree tier

Free plan available. Pro from $20/contributor/month. Enterprise $30/contributor/month with volume discounts (5% off 100+ seats, 10% off 200+ seats annually).

  • FreeFree
    • Linting & auto-formatting
    • Code coverage
    • Maintainability & duplication
    • Open, extensible Rust CLI
    • Unlimited private/public contributors
    • +1 more
  • Pro$20/contributor/month
    • Everything from Free
    • Shared configurations
    • Trends & hotspots
    • One year of history
    • Accelerated analysis
    • +10 more
  • EnterpriseContact sales
    • Everything from Pro
    • Advanced analytics
    • Organization policies
    • Custom permissions
    • Audit logs
    • +6 more
as of verify ↗

RuboCop

Leader
Open sourceFree tier

Free and open source

as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Qlty✓
RuboCop✗
macOS
Qlty✓
RuboCop✗
Windows
Qlty✓
RuboCop✗
Linux
Qlty✓
RuboCop✗
CLI
Qlty✓
RuboCop✓
Deployment
Cloud / SaaS
Qlty✓
RuboCop✗
Self-hosted
Qlty✗
RuboCop✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Qlty

6 total
  • GitHub
  • Visual Studio Code
  • GitHub Actions
  • CircleCI
  • Chrome
  • Firefox
Independently observed

RuboCop

Leader
19 total
  • rubocop-performance
  • rubocop-rails
  • rubocop-rspec
  • rubocop-minitest
  • rubocop-rake
  • rubocop-sequel
  • rubocop-thread_safety
  • rubocop-capybara
  • rubocop-factory_bot
  • rubocop-rspec_rails
  • rubocop-i18n
  • Eglot
  • Helix
  • Flycheck
  • VS Code
  • RubyMine
  • Emacs
  • Neovim
  • Zed
Independently observed
Still deciding?

Qlty or RuboCop: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.