Dotenv Package

Lesson in the Node.js Roadmap · Stage 6: Command Line Apps

Last updated 14 September 2026

What is Dotenv Package?

dotenv package

dotenv is an npm package that loads environment variables from a .env file into process.env. It is commonly used in development to manage configuration like API keys and database URLs without hardcoding them in source code. The .env file should not be committed to version control.

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Free resources to learn Dotenv Package

Official docsprocess.env Documentation
Official docsDotenv package
Open sourcedotenv Docs
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ArticleDotenv tutorial

Dotenv Package: common questions

Can I learn Dotenv Package in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Dotenv Package in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Dotenv Package tutorial for beginners?

It is lesson 39 of 113 in the free Node.js roadmap, in stage 6, Command Line Apps. If you are new to Node.js, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.