I posted dotenv-diff here a couple of weeks ago. Since then, I’ve made several improvements based on feedback and real-world usage.

The goal remains simple: statically audit how environment variables are actually used in a JS/TS codebase.

Repo: https://github.com/Chrilleweb/dotenv-diff

Docs: https://dotenv-diff-docs.vercel.app/

npm: https://www.npmjs.com/package/dotenv-diff

Feedback always welcome :)