ast-grep
Structural search/rewrite tool for many languages
- Also known as
- ast-grep
What is ast-grep?
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.
ast-grep pricing
We don't have ast-grep's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What ast-grep does
The capabilities that matter for code quality tools, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Function
- Linter + formatter
- Language scope
- Multi-language
- Implementation language
- Rust
- Autofix
- ✓
- Config model
- Rule packs
- Custom rules
- ✓
- Deployment
- CLI-local
- Editor integration
- ✓
- CI / VCS gating
- -
- Code metrics
- -
- Incremental / monorepo aware
- -
- Open-source
- OSS
- Pricing model
- Free
Platform & deployment
Independently observed- CLI
- Web
ast-grep alternatives
Other code quality tools we track, ranked by the same independent score.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for ast-grep, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Github Activity | 53 | 18.00 | 952.7 | ✓ |
| Capabilities | 58 | 16.00 | 925.0 | ✓ |
| Release Cadence | 89 | 10.00 | 894.4 | ✓ |
| Price Level | 100 | 6.00 | 600.0 | ✓ |
| Github Stars | 79 | 5.00 | 394.9 | ✓ |
| Pricing Transparency | 25 | 8.00 | 200.0 | ✓ |
| Reliability | 0 | 8.00 | 0.0 | - |
| Integrations | 0 | 8.00 | 0.0 | - |
| Security Posture | 0 | 13.00 | 0.0 | - |
| Package Downloads | 0 | 26.00 | 0.0 | - |
| Stackoverflow Activity | 0 | 12.00 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 47 | mediumsource · 2026-08-03 · 65% |
Adoption
| Attribute | Value | Evidence |
|---|---|---|
| Github stars | 15,365 | highsource · 2026-08-03 · 90% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | {"autofix":true,"function":"linter_formatter","deployment":"cli_local","open_source":"oss","config_model":"rule_packs","custom_rules":true,"impl_language":"Rust","pricing_model":"free","language_scope":"multi_language","editor_integration":true} | mediumsource · 2026-08-03 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Rust | highsource · 2026-08-03 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | MIT | highsource · 2026-08-03 · 95% |
Pricing
Release
| Attribute | Value | Evidence |
|---|---|---|
| Cadence days | 19 | mediumsource · 2026-08-03 · 70% |