@kszongic/dotenv-gen-cli

Generate .env files from .env.example templates — interactively or with defaults.

Install

npm i -g @kszongic/dotenv-gen-cli

Usage

# Interactive mode — prompts for each variable
dotenv-gen

# Use default values without prompting
dotenv-gen -d

# Custom template and output
dotenv-gen .env.production -o .env.prod

# Strip comments, overwrite existing
dotenv-gen --strip --force

How It Works

Given a .env.example like:

# Database
DB_HOST=localhost
DB_PORT=5432
DB_NAME=myapp

# Auth
JWT_SECRET=
API_KEY=changeme

Running dotenv-gen will prompt you for each value (showing defaults), then write .env.

Running dotenv-gen -d copies defaults as-is — great for CI/CD or quick setup.

Options

| Flag | Description | |------|-------------| | -o, --output <file> | Output file (default: .env) | | -f, --force | Overwrite existing output | | -d, --defaults | Use defaults without prompting | | -s, --strip | Remove comments from output | | -h, --help | Show help | | -v, --version | Show version |

Why?

Every project has .env.example. Setting up .env manually is tedious and error-prone. This tool makes it a one-command operation.

License

MIT © 2026 kszongic