.env.local.production [best]

uses the VITE_ prefix for client-exposed variables.

🔐 Best practice: Use .env.production.local only for overrides or during local debugging. For real production secrets, use cloud secret stores or CI/CD environment variables.

: General local overrides applied across all environments (development, test, production). .env.local.production

API_KEY=abc123

By using .env.local.production , you can override the API_KEY environment variable set in the .env file, ensuring that your application uses the correct API key in production. uses the VITE_ prefix for client-exposed variables

Since .env.local.production is hidden from Git, create an .env.example file tracking placeholder keys. This tells teammates what variables they need to configure to test production builds locally.

In the modern world of full-stack and Jamstack development, environment variables are the bedrock of security and configuration management. We all know the standard players: .env , .env.local , .env.production , and .env.test . : General local overrides applied across all environments

# .gitignore .env.production.local .env.local *.local # .env.production (committed) API_URL=https://api.myapp.com/v1 LOG_LEVEL=info # .env.production.local (gitignored) API_URL=https://staging-api.myapp.com/v1 # local override LOG_LEVEL=debug DEBUG=true

: Specifies that the file is machine-specific. It is meant to exist only on a particular local machine or specific server, overriding the team-wide defaults. The Core Purpose of .env.local.production