A lightweight tool for analyzing .env files, checking for security issues, and generating clean example configuration files.

Overview

env-analyzer is a command-line tool that:

• Analyzes your existing .env files
• Identifies sensitive variables (API keys, passwords, tokens)
• Detects empty or misconfigured variables
• Suggests commonly used but missing variables
• Generates clean .env.example files for safe sharing

Installation

Global

npm install -g env-analyzer

Local

npm install env-analyzer --save-dev

Usage

Basic Usage

Navigate to your work directory (containing a .env file) and run:

env-analyzer

Example Output

📋 ENV Analysis Results:

⚠️  Sensitive Variables:
  - API_KEY: API keys are sensitive credentials
  - DB_PASSWORD: Database passwords are sensitive credentials

Make sure not to include the actual values of these variables in your .env.example file.

❌ Empty Variables:
  - CACHE_TTL: This variable is defined but has no value

💡 Recommended Variables:
  - LOG_LEVEL: Specifies logging level
  - CORS_ORIGIN: Specifies allowed origins for CORS

✅ .env.example file successfully created: /path/to/your/work/.env.example

Features

• Security Analysis: Identifies potentially sensitive variables in your environment configuration
• Missing Variable Detection: Suggests common environment variables that might be missing
• Clean Example Generation: Creates a safe .env.example file for sharing with team members or in repositories

Example .env.example Output

# Example .env file
# Copy this file as .env and update with your values

API_KEY=your_secure_value_here
DATABASE_URL=value_here
NODE_ENV=value_here
DB_PASSWORD=your_secure_value_here

# Recommended variables
# Specifies logging level
LOG_LEVEL=value_here

# Specifies allowed origins for CORS
CORS_ORIGIN=value_here