🎉 announcing dotenvx. run anywhere, multi-environment, encrypted envs.

^{Dotenv is supported by the community.}

^{Special thanks to:}

Warp is a blazingly fast, Rust-based terminal reimagined to work like a modern app.

^{Get more done in the CLI with real text editing, block-based output, and AI command search.}

Your App, Enterprise Ready.

^{Add Single Sign-On, Multi-Factor Auth, and more, in minutes instead of months.}

Launch user-facing integrations faster

^{Easily spin up hundreds of integrations. Sign up free or read our docs first}

# dotenv [![NPM version](https://img.shields.io/npm/v/dotenv.svg?style=flat-square)](https://www.npmjs.com/package/dotenv) dotenv

Dotenv is a zero-dependency module that loads environment variables from a `.env` file into [`process.env`](https://nodejs.org/docs/latest/api/process.html#process_process_env). Storing configuration in the environment separate from code is based on [The Twelve-Factor App](https://12factor.net/config) methodology. [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](https://github.com/feross/standard) [![LICENSE](https://img.shields.io/github/license/motdotla/dotenv.svg)](LICENSE) [![codecov](https://codecov.io/gh/motdotla/dotenv-expand/graph/badge.svg?token=pawWEyaMfg)](https://codecov.io/gh/motdotla/dotenv-expand) * [🌱 Install](#-install) * [🏗️ Usage (.env)](#%EF%B8%8F-usage) * [🌴 Multiple Environments 🆕](#-manage-multiple-environments) * [🚀 Deploying (.env.vault) 🆕](#-deploying) * [📚 Examples](#-examples) * [📖 Docs](#-documentation) * [❓ FAQ](#-faq) * [⏱️ Changelog](./CHANGELOG.md) ## 🌱 Install ```bash # install locally (recommended) npm install dotenv --save ``` Or installing with yarn? `yarn add dotenv` ## 🏗️ Usage

Create a `.env` file in the root of your project: ```dosini S3_BUCKET="YOURS3BUCKET" SECRET_KEY="YOURSECRETKEYGOESHERE" ``` As early as possible in your application, import and configure dotenv: ```javascript require('dotenv').config() console.log(process.env) // remove this after you've confirmed it is working ``` .. [or using ES6?](#how-do-i-use-dotenv-with-import) ```javascript import 'dotenv/config' ``` That's it. `process.env` now has the keys and values you defined in your `.env` file: ```javascript require('dotenv').config() ... s3.getBucketCors({Bucket: process.env.S3_BUCKET}, function(err, data) {}) ``` ### Multiline values If you need multiline variables, for example private keys, those are now supported (`>= v15.0.0`) with line breaks: ```dosini PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY----- ... Kh9NV... ... -----END RSA PRIVATE KEY-----" ``` Alternatively, you can double quote strings and use the `\n` character: ```dosini PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY-----\nKh9NV...\n-----END RSA PRIVATE KEY-----\n" ``` ### Comments Comments may be added to your file on their own line or inline: ```dosini # This is a comment SECRET_KEY=YOURSECRETKEYGOESHERE # comment SECRET_HASH="something-with-a-#-hash" ``` Comments begin where a `#` exists, so if your value contains a `#` please wrap it in quotes. This is a breaking change from `>= v15.0.0` and on. ### Parsing The engine which parses the contents of your file containing environment variables is available to use. It accepts a String or Buffer and will return an Object with the parsed keys and values. ```javascript const dotenv = require('dotenv') const buf = Buffer.from('BASIC=basic') const config = dotenv.parse(buf) // will return an object console.log(typeof config, config) // object { BASIC : 'basic' } ``` ### Preload > Note: Consider using [`dotenvx`](https://github.com/dotenvx/dotenvx) instead of preloading. I am now doing (and recommending) so. > > It serves the same purpose (you do not need to require and load dotenv), adds better debugging, and works with ANY language, framework, or platform. – [motdotla](https://github.com/motdotla) You can use the `--require` (`-r`) [command line option](https://nodejs.org/api/cli.html#-r---require-module) to preload dotenv. By doing this, you do not need to require and load dotenv in your application code. ```bash $ node -r dotenv/config your_script.js ``` The configuration options below are supported as command line arguments in the format `dotenv_config_

	Stars	Issues	Version	Updated	Created
dotenv	18,511	6	16.4.5	3 months ago	11 years ago
express	63,861	192	4.19.2	a month ago	13 years ago
koa	34,868	57	2.15.3	25 days ago	10 years ago
pm2	40,750	924	5.3.1	4 months ago	11 years ago
react	222,250	832	18.3.1	10 days ago	13 years ago

dotenv vs express vs koa vs pm2 vs react

Downloads in past1 Month3 Months6 Months1 Year2 Years5 YearsAll time

Stats

Popular Searches

Sick of boring JavaScript newsletters?

Downloads in past