jscodeshift vs ReSharper

jscodeshift is a free toolkit for developers who build and run codemods across JavaScript, TypeScript, or Flow projects. A codemod parses source into an abstract syntax tree, changes that tree, and generates source code. The runner applies a transform to each file and reports files that were not transformed. Its command line accepts a local transform, a URL, or paths from standard input. Parser choices include Babel, Babylon, Flow, TypeScript, and TSX, with Babel as the default. Users can set child-process limits, choose extensions, exclude paths with ignore patterns or configuration files, and preview changes in dry-run mode. The API supports traversal, filtering, finding, replacing, inserting, removing, and renaming syntax-tree nodes, with optional formatting during output. jscodeshift wraps recast to help preserve source style. Jest and Jasmine utilities support fixture or inline tests, and VS Code debugging guidance is documented. It runs on Linux, macOS, Windows, or self-hosted environments under an MIT license.

ReSharper provides coding assistance and code quality tools for.NET development. It analyzes C#, VB.NET, XAML, ASP.NET, HTML, and XML as code is written. Editing features include extended IntelliSense, transformations, namespace imports, code rearrangement, and documentation display. Developers can generate properties, overloads, implementations, and comparers, then apply refactorings across a solution or to smaller sections. Navigation helps move among files, types, and members, and follow symbols to usages, base or derived symbols, and implementations. Other tools include a unit test runner, code templates, debugging assistance, project dependency viewing, and internationalization assistance. The VS Code edition also works with Cursor, Antigravity IDE, Devin Desktop, Kiro IDE, and compatible editors. It runs on Windows, macOS, and Linux on x64 and ARM64, including Apple silicon on macOS, and requires a.NET SDK version 6.0 or later on PATH. A 30-day trial starts after installation. Afterward, use requires a commercial license or a free non-commercial license. The commercial plan costs $389 a year per user.