Comparison

ast-grep vs Prettier

On the evidence we track, Prettier leads this comparison with a composite score of 82/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

ast-grep full profile →Prettier full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

ast-grep60

★Prettier82

Attribute comparison across 2 tools
Attribute	ast-grep	PrettierLeader
Vioscale score	60 / 100low · 45%	82 / 100high · 79%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	free	free
Transparentpricing.transparent	-	✓
Integrations
Countintegrations.count	-	19
Security
Scorecardsecurity.scorecard	-	6.7
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=npm&package_name=prettier&per_page=100 · Last 12m: 0
Adoption
Dependent reposadoption.dependent_repos	177	1,703,312
Github starsadoption.github_stars	15,649	52,212
Package downloads weeklyadoption.package_downloads_weekly	-	133,260,364
Activity
Commits last 30dactivity.commits_last_30d	49	100
Release
Cadence daysrelease.cadence_days	14	3
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	MIT	MIT
Language
Primarylanguage.primary	Rust	JavaScript
Market
Availabilitymarket.availability	-	Available worldwide

Score

Vioscale score

ast-grep60 / 100low · 45%

Prettier82 / 100high · 79%

Pricing

Free tier

ast-grep✓

Prettier✓

Model

ast-grepcommercial

Prettiercommercial

Price level

ast-grepfree

Prettierfree

Transparent

ast-grep–

Prettier✓

Integrations

Count

ast-grep–

Prettier19

Security

Scorecard

ast-grep–

Prettier6.7

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

PrettierCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=prettier&per_page=100 · Last 12m: 0

Adoption

Dependent repos

ast-grep177

Prettier1,703,312

Github stars

ast-grep15,649

Prettier52,212

Package downloads weekly

ast-grep–

Prettier133,260,364

Activity

Commits last 30d

ast-grep49

Prettier100

Release

Cadence days

ast-grep14

Prettier3

History

ast-grep20 items

Prettier20 items

License

Spdx

ast-grepMIT

PrettierMIT

Language

Primary

ast-grepRust

PrettierJavaScript

Market

Availability

ast-grep–

PrettierAvailable worldwide

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	Prettier
Core
Function	Static analyzer	Formatter
Language scope	Multi-language	Multi-language
Implementation language	Rust	JavaScript
Capability
Autofix	✓	✓
Config
Config model	Rule packs	Config file
Extensibility
Custom rules	✓	✗
Deployment
Deployment	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

PrettierFormatter

Language scope

ast-grepMulti-language

PrettierMulti-language

Implementation language

ast-grepRust

PrettierJavaScript

Capability

Autofix

ast-grep✓

Prettier✓

Config

Config model

ast-grepRule packs

PrettierConfig file

Extensibility

Custom rules

ast-grep✓

Prettier✗

Deployment

ast-grepCLI-local

Prettier-

Delivery

Editor integration

ast-grep✓

Prettier✓

CI / VCS gating

ast-grep-

Prettier✓

Insight

Code metrics

ast-grep-

Prettier✗

Performance

Incremental / monorepo aware

ast-grep-

Prettier✓

Licensing

Open-source

ast-grepOSS

PrettierOSS

Commercial

Pricing model

ast-grepFree

PrettierFree

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

Prettier

Leader

Prettier is a code formatting tool that parses source code and reprints it with its own consistent style rules. It integrates with editors and CI systems to format code automatically on save or in version control workflows, reducing style-related code review discussions.

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 ↗

Prettier

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	ast-grep	Prettier
WebPlatforms	✗	✓
CLIPlatforms	✓	✓
Self-hostedDeployment	✓	✓

Platforms

Web

ast-grep✗

Prettier✓

CLI

ast-grep✓

Prettier✓

Deployment

Self-hosted

ast-grep✓

Prettier✓

Integrations

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

ast-grep

Not documented yet.

Prettier

Leader

8 total

VS Code
WebStorm
Vim
Sublime Text
Emacs
Visual Studio
Nova
Neovim

Independently observed

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