envtainer

Manage your environment variables across projects and environments — keep .env files organized, validated, and in sync.

Features

• Manage environment variables across multiple environments (development, staging, production)
• Validate required variables and types before your app starts
• Sync .env templates across team members
• Diff and merge environment files safely

Usage

# Initialize envtainer in your project
envtainer init

# Validate current .env against .env.example
envtainer validate

# Show diff between environments
envtainer diff development production

Use Cases

• Ensure required env vars are set before deployment
• Keep team .env files in sync with a template
• Prevent secrets from leaking into version control
• Manage per-environment configuration