For JavaScript refactoring, the most directly relevant tools are Fallow, which reports unused code, duplication, complexity and circular dependencies from one graph of the repository 10, and Knip, which finds unused dependencies, exports and files 2. ESLint 3 and Prettier 9 complement them for linting and formatting, and Oxc 4 offers high-performance JavaScript and TypeScript tooling.

1. 1

   Fallowfallow.toolsverified and signed

   Reports health, complexity, duplication, architecture drift and unused code across a TypeScript and JavaScript repository, and its fallow_analyze action runs that analysis on the project 1020.

   WebsiteDocs

   for agents: fallow · fallow_analyze · fallow-review

2. 2

   Knipknip.devwebsite read, tools not yet checked

   Project linter that finds unused dependencies, exports and files so the codebase can be pruned 2.

   WebsiteDocs

   +2 community tools built for it

3. 3

   ESLinteslint.orgwebsite read, tools not yet checked

   Pluggable linter that statically analyzes JavaScript to find problems, many of which can be automatically fixed 3.

   WebsiteDocs

   +8 community tools built for it

4. 4

   Prettierprettier.iowebsite read, tools not yet checked

   Opinionated code formatter for keeping JavaScript code layout consistent 9.

   WebsiteDocs

   +2 community tools built for it

5. 5

   Oxcoxc.rswebsite read, tools not yet checked

   Collection of high-performance JavaScript and TypeScript tools written in Rust, including a linter and transpiler 4.

   WebsiteDocs