Comparison

ast-grep vs Ruff

On the evidence we track, Ruff leads this comparison with a composite score of 74/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

ast-grep full profile →Ruff full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

ast-grep60

★Ruff74

Attribute comparison across 2 tools
Attribute	ast-grep	RuffLeader
Vioscale score	60 / 100low · 45%	74 / 100high · 76%
Pricing
Free tierpricing.free_tier	✓	-
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	free	-
Integrations
Countintegrations.count	-	6
Security
Gdprsecurity.gdpr	-	✓
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40ast-grep%2Fnapi&per_page=100 · Last 12m: 0	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=ruff&per_page=100 · Last 12m: 0
Adoption
Dependent reposadoption.dependent_repos	177	5,870
Github starsadoption.github_stars	15,649	49,341
Package downloads weeklyadoption.package_downloads_weekly	-	77,677,334
Activity
Commits last 30dactivity.commits_last_30d	49	100
Release
Cadence daysrelease.cadence_days	14	7
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	MIT	MIT
Language
Primarylanguage.primary	Rust	Rust
Market
Availabilitymarket.availability	-	Available worldwide · Popular in US · HQ US

Score

Vioscale score

ast-grep60 / 100low · 45%

Ruff74 / 100high · 76%

Pricing

Free tier

ast-grep✓

Ruff–

Model

ast-grepcommercial

Ruffcommercial

Price level

ast-grepfree

Ruff–

Integrations

Count

ast-grep–

Ruff6

Security

Gdpr

ast-grep–

Ruff✓

Vulnerabilities

ast-grepCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40ast-grep%2Fnapi&per_page=100 · Last 12m: 0

RuffCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=ruff&per_page=100 · Last 12m: 0

Adoption

Dependent repos

ast-grep177

Ruff5,870

Github stars

ast-grep15,649

Ruff49,341

Package downloads weekly

ast-grep–

Ruff77,677,334

Activity

Commits last 30d

ast-grep49

Ruff100

Release

Cadence days

ast-grep14

Ruff7

History

ast-grep20 items

Ruff20 items

License

Spdx

ast-grepMIT

RuffMIT

Language

Primary

ast-grepRust

RuffRust

Market

Availability

ast-grep–

RuffAvailable worldwide · Popular in US · HQ US

Capabilities

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

Capability comparison for Code Quality Tools
Capability	ast-grep	Ruff
Core
Function	Static analyzer	Linter
Language scope	Multi-language	Single-language
Implementation language	Rust	Rust
Capability
Autofix	✓	✓
Config
Config model	Rule packs	-
Extensibility
Custom rules	✓	-
Deployment
Deployment	CLI-local	CLI-local
Delivery
Editor integration	✓	✓
CI / VCS gating	-	-
Insight
Code metrics	-	-
Performance
Incremental / monorepo aware	-	✓
Licensing
Open-source	OSS	OSS
Commercial
Pricing model	Free	Free

Core

Function

ast-grepStatic analyzer

RuffLinter

Language scope

ast-grepMulti-language

RuffSingle-language

Implementation language

ast-grepRust

RuffRust

Capability

Autofix

ast-grep✓

Ruff✓

Config

Config model

ast-grepRule packs

Ruff-

Extensibility

Custom rules

ast-grep✓

Ruff-

Deployment

ast-grepCLI-local

RuffCLI-local

Delivery

Editor integration

ast-grep✓

Ruff✓

CI / VCS gating

ast-grep-

Ruff-

Insight

Code metrics

ast-grep-

Ruff-

Performance

Incremental / monorepo aware

ast-grep-

Ruff✓

Licensing

Open-source

ast-grepOSS

RuffOSS

Commercial

Pricing model

ast-grepFree

RuffFree

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

Ruff

Leader

A fast Python linter built in Rust that consolidates multiple linting tools into a single interface. It supports over 500 rules, provides automated fixes for common issues, and runs significantly faster than traditional Python linters on even very large codebases.

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 2026-08-14verify ↗

Ruff

Leader

Pricing not documented yet.

Platform & deployment

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

Platform and deployment support comparison
Supports	ast-grep	Ruff
macOSPlatforms	✗	✓
WindowsPlatforms	✗	✓
LinuxPlatforms	✗	✓
CLIPlatforms	✓	✓
Self-hostedDeployment	✓	✓

Platforms

macOS

ast-grep✗

Ruff✓

Windows

ast-grep✗

Ruff✓

Linux

ast-grep✗

Ruff✓

CLI

ast-grep✓

Ruff✓

Deployment

Self-hosted

ast-grep✓

Ruff✓

Integrations

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

ast-grep

Not documented yet.

Ruff

Leader

6 total

Flake8
isort
Autoflake
Pyflakes
pycodestyle
Pylint

Independently observed

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