codemod/codemod

Health v2 · maintenance only

Adoption not part of the score

1082 stars · 83 forks observed · 2026-09-03

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Codemod is an open-source CLI and workflow engine for scaffolding, testing, running, and publishing codemods—automated, multi-step code transformations for migrations, upgrades, and large-scale refactoring. It supports polyglot transformations with first-class ast-grep and JSSG (TypeScript AST pattern matching), and connects to a hosted registry and platform for sharing and orchestrating migrations across repositories.

Use cases

• upgrade react or node across a large codebase
• migrate a design system like radix or tailwind to a new version
• automate i18n by converting static strings to translation keys
• run security or compliance remediation patches at scale
• scaffold and publish a reusable codemod to a registry
• orchestrate multi-step migrations across many repositories in CI

When to choose

• you need to apply repetitive, large-scale code changes across many files or repos
• you want a CLI to author, test, and share AST-based transformations with ast-grep or jscodeshift
• you need orchestrated migrations with workflow configs, matrix strategies, and approval gates

When to avoid

• you only need a one-off find-and-replace that sed or a simple script can handle
• you want a GUI-based refactoring tool rather than a CLI workflow
• your transformations are simple enough that an IDE's built-in refactorings suffice

Facets

cli-tool · maturity active

cli developer-tools workflow-automation parser build-tool developer-tools version-control cli cross-platform codemod code-migration ast-transformation ast-grep jscodeshift ts-morph refactoring framework-upgrade registry mcp automation command-line nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="codemod/codemod")