Comparison

Qlty vs RuboCop

On the evidence we track, RuboCop leads this comparison with a composite score of 70/100. 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 →

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Qlty52

★RuboCop70

Attribute comparison across 2 tools
Attribute	Qlty	RuboCopLeader
Vioscale score	52 / 100medium · 54%updating	70 / 100medium · 53%updating
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	freemium	commercial
Price levelpricing.price_level	mid	free
Transparentpricing.transparent	✓	✓
Integrations
Countintegrations.count	6	14
Security
Scorecardsecurity.scorecard	-	5.6
Soc2security.soc2	✓	-
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=cargo&package_name=qlty-cloud&per_page=100 · Last 12m: 0	Count: 1 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=rubygems&package_name=rubocop&per_page=100 · Last 12m: 0 · Max severity: LOW
Reliability
Status pagereliability.status_page	✓	-
Adoption
Dependent reposadoption.dependent_repos	0	115,529
Github starsadoption.github_stars	3,130	12,899
Activity
Commits last 30dactivity.commits_last_30d	9	100
Release
Cadence daysrelease.cadence_days	4	16
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	-	MIT
Language
Primarylanguage.primary	Rust	Ruby
Market
Availabilitymarket.availability	Available worldwide · Popular in US	-

Score

Vioscale score

Qlty52 / 100medium · 54%updating

RuboCop70 / 100medium · 53%updating

Pricing

Free tier

Qlty✓

RuboCop✓

Model

Qltyfreemium

RuboCopcommercial

Price level

Qltymid

RuboCopfree

Transparent

Qlty✓

RuboCop✓

Integrations

Count

Qlty6

RuboCop14

Security

Scorecard

Qlty–

RuboCop5.6

Soc2

Qlty✓

RuboCop–

Vulnerabilities

QltyCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=cargo&package_name=qlty-cloud&per_page=100 · Last 12m: 0

RuboCopCount: 1 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=rubygems&package_name=rubocop&per_page=100 · Last 12m: 0 · Max severity: LOW

Reliability

Status page

Qlty✓

RuboCop–

Adoption

Dependent repos

Qlty0

RuboCop115,529

Github stars

Qlty3,130

RuboCop12,899

Activity

Commits last 30d

Qlty9

RuboCop100

Release

Cadence days

Qlty4

RuboCop16

History

Qlty20 items

RuboCop20 items

License

Spdx

Qlty–

RuboCopMIT

Language

Primary

QltyRust

RuboCopRuby

Market

Availability

QltyAvailable worldwide · Popular in US

RuboCop–

Capabilities

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

Capability comparison for Code Quality Tools
Capability	Qlty	RuboCop
Core
Function	Quality platform	Linter + formatter
Language scope	Multi-language	Single-language
Implementation language	Rust	Ruby
Capability
Autofix	✓	✓
Config
Config model	Config file	Config file
Extensibility
Custom rules	✓	✓
Deployment
Deployment	Both	CLI-local
Delivery
Editor integration	✓	✓
CI / VCS gating	✓	-
Insight
Code metrics	✓	-
Performance
Incremental / monorepo aware	✓	-
Licensing
Open-source	Open-core	OSS
Commercial
Pricing model	Per-contributor	Free

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

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 platform that automatically analyzes pull requests for linting, formatting, security issues, and code coverage with AI-generated fixes. Supports 40+ languages and integrates with GitHub, IDEs, and CI systems.

Independently observed

RuboCop

Leader

RuboCop is an open-source Ruby linter and formatter that enforces code style based on the Ruby community style guide. It detects code quality issues and can automatically fix many of them, with extensive configuration options and extensibility through community plugins.

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/moSubscriptionFree tier

Free plan available. Pro from $20/contributor/month. Enterprise from $30/contributor/month. Annual plans include 2 months free.

FreeFree
- Unlimited public and private repositories
- Unlimited contributors
- 1,000 analysis minutes per month
- 100 AI autofixes per month
- Linting and auto-formatting
- +8 more
Pro$20/contributor/month. Annual billing includes 2 months free.
- Everything in Free, plus:
- Shared configurations
- Trends and hotspots
- 1 year of history
- Accelerated analysis
- +6 more
EnterpriseContact sales
- Everything in Pro, plus:
- Advanced analytics
- Organization policies
- Custom permissions
- Audit logs
- +9 more

as of 2026-08-14verify ↗

RuboCop

Leader

Open sourceFree tier

Free and open source

as of 2026-08-14verify ↗

Platform & deployment

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

Platform and deployment support comparison
Supports	Qlty	RuboCop
WebPlatforms	✓	✗
macOSPlatforms	✓	✗
WindowsPlatforms	✓	✗
LinuxPlatforms	✓	✗
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✓	-

Platforms

Web

Qlty✓

RuboCop✗

macOS

Qlty✓

RuboCop✗

Windows

Qlty✓

RuboCop✗

Linux

Qlty✓

RuboCop✗

CLI

Qlty✓

RuboCop✓

Deployment

Cloud / SaaS

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

14 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

Independently observed

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