Verification, sanitization, and type coercion for environment variables in Node.js

Load tsconfig, respecting `TS_NODE_PROJECT` env var and `extends`

Base configuration class that uses env-var and dotenv

A collection of utilities to simplify/standardize env var parsing

Runtime environment detection and typed env-var parsing.

Env var in Vite at container startup

A Node JS wrapper around commander to allow for easy commandline and env var parsing

Runtime env var support for static javascript apps on Heroku

Set Env var in Capacitor config and read them at runtime

將環境變數值轉換為 JavaScript 類型值 (Convert env var value to JS type, support boolean conversion)

Load and merge configuration from vendor, system, user, and local sources with optional env var overrides

Run `env-var-codegen init` to create a config file.

Easy and secure configuration management. JSON based - AES encrypted secrets - HMAC validation - env var export

ESLint rules that force all env-var reads through a single validated singleton — no raw process.env, every key must exist in the schema.

Provider-agnostic email adapter framework. Switch between Resend, SMTP/Nodemailer, ZeptoMail, or console with one env var.

Env-var-to-config-object generator

env-var-provider is a library that get environment variables.

Pluggable secrets backend with rotation + audit-log integration: env-var, file, vault

Catch config drift in CI — fail a deploy if a required env var is missing or wrong.

Covert env var strings to other types