`workerloader-jest-transformer` is a small Jest transformer that lets you run tests on modules loaded with Webpack’s **worker‑loader** (files ending in `.worker.js`/`.worker.tsx`, etc.). It converts those worker files into a form Jest can execute, making it easier for front‑end projects that use Web Workers in a Webpack build to test their code. The package is aimed at JavaScript/TypeScript developers using Jest and worker‑loader in their build pipeline.