es6-module-crosspiler

An ES6 and CommonJS cross-compatible transpiler that enables mixed usage of ES6 modules and CommonJS modules during migration. Version 2.0.1 is the latest stable release but appears to be in maintenance mode as the project has seen no recent updates and uses legacy dependencies like recast and esprima-fb. Unlike higher-level transpilers (e.g., Babel), this is a lower-level library that operates on recast ASTs, allowing flexibility in custom build pipelines but lacking file system resolution and custom formatters.