# ast-grep

> Structural search/rewrite tool for many languages

- **Canonical URI:** https://www.vioscale.ai/software/ast-grep
- **Category:** Code Quality Tools
- **Homepage:** https://ast-grep.github.io
- **Also known as:** ast-grep
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-03T22:48:38.067Z

## Vioscale score

**63 / 100**, confidence 23% (low).

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| price_level | 100 | 6 | 600 | ✓ |
| reliability | 0 | 8 | 0 | - |
| capabilities | 57.8 | 16 | 925 | ✓ |
| github_stars | 79 | 5 | 394.9 | ✓ |
| integrations | 0 | 8 | 0 | - |
| github_activity | 52.9 | 18 | 952.7 | ✓ |
| release_cadence | 89.4 | 10 | 894.4 | ✓ |
| security_posture | 0 | 13 | 0 | - |
| package_downloads | 0 | 26 | 0 | - |
| pricing_transparency | 25 | 8 | 200 | ✓ |
| stackoverflow_activity | 0 | 12 | 0 | - |

## Pricing

_As of 2026-08-03, [verify at source](https://ast-grep.github.io). Independently observed._

Free · Free tier

## About

A fast, polyglot tool for code structural search, linting, and rewriting at large scale. Works like syntax-aware grep/sed to locate and modify code based on AST.

_Independently observed._

## Platform & deployment

- **Platforms:** CLI, Web

## Capabilities

_The capabilities that matter for Code Quality Tools. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Core** | |
| Function | Linter + formatter |
| Language scope | Multi-language |
| Implementation language | Rust |
| **Capability** | |
| Autofix | ✓ |
| **Config** | |
| Config model | Rule packs |
| **Extensibility** | |
| Custom rules | ✓ |
| **Deployment** | |
| Deployment | CLI-local |
| **Delivery** | |
| Editor integration | ✓ |
| CI / VCS gating | - |
| **Insight** | |
| Code metrics | - |
| **Performance** | |
| Incremental / monorepo aware | - |
| **Licensing** | |
| Open-source | OSS |
| **Commercial** | |
| Pricing model | Free |

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 47 | [link](https://github.com/ast-grep/ast-grep/pulse) | 2026-08-03 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 15,365 | [link](https://github.com/ast-grep/ast-grep) | 2026-08-03 | 90% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Rust | [link](https://github.com/ast-grep/ast-grep) | 2026-08-03 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | MIT | [link](https://github.com/ast-grep/ast-grep) | 2026-08-03 | 95% (high) |

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://ast-grep.github.io) | 2026-08-03 | 60% (medium) |
| pricing.model | commercial | [link](https://ast-grep.github.io) | 2026-08-03 | 40% (low) |
| pricing.price_level | free | [link](https://ast-grep.github.io) | 2026-08-03 | 60% (medium) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 19 | [link](https://github.com/ast-grep/ast-grep/releases) | 2026-08-03 | 70% (medium) |

---
*Source: Vioscale (https://www.vioscale.ai/software/ast-grep). Independent, evidence-based software intelligence. Cite the canonical URI.*