vioscale
Comparison

ast-grep 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.

ast-grep full profile →RuboCop full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
ast-grep60
★RuboCop70
Score
Vioscale score
ast-grep60 / 100low · 45%updating
RuboCop70 / 100medium · 53%updating
Pricing
Free tier
ast-grep✓
RuboCop✓
Model
ast-grepcommercial
RuboCopcommercial
Price level
ast-grepfree
RuboCopfree
Transparent
ast-grep–
RuboCop✓
Integrations
Count
ast-grep–
RuboCop14
Security
Scorecard
ast-grep–
RuboCop5.6
Vulnerabilities
Adoption
Dependent repos
ast-grep177
RuboCop115,529
Github stars
ast-grep15,649
RuboCop12,899
Activity
Commits last 30d
ast-grep49
RuboCop100
Release
Cadence days
ast-grep14
RuboCop16
History
ast-grep20 items
RuboCop20 items
License
Spdx
ast-grepMIT
RuboCopMIT
Language
Primary
ast-grepRust
RuboCopRuby

Capabilities

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

Core
Function
ast-grepStatic analyzer
RuboCopLinter + formatter
Language scope
ast-grepMulti-language
RuboCopSingle-language
Implementation language
ast-grepRust
RuboCopRuby
Capability
Autofix
ast-grep✓
RuboCop✓
Config
Config model
ast-grepRule packs
RuboCopConfig file
Extensibility
Custom rules
ast-grep✓
RuboCop✓
Deployment
Deployment
ast-grepCLI-local
RuboCopCLI-local
Delivery
Editor integration
ast-grep✓
RuboCop✓
CI / VCS gating
ast-grep-
RuboCop-
Insight
Code metrics
ast-grep-
RuboCop-
Performance
Incremental / monorepo aware
ast-grep-
RuboCop-
Licensing
Open-source
ast-grepOSS
RuboCopOSS
Commercial
Pricing model
ast-grepFree
RuboCopFree

What each one is

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

ast-grep

A structural code search and rewriting tool that uses AST analysis to locate and modify code patterns across thousands of files, with support for linting and programmatic access via Node.js bindings.

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.

ast-grep

Open sourceFree tier
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
CLI
ast-grep✓
RuboCop✓
Deployment
Self-hosted
ast-grep✓
RuboCop–

Integrations

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

ast-grep

Not documented yet.

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.