.env.local.production
(The highest file-based priority for production) .env.production (General production settings) .env.local (Local overrides for all environments) .env (The default/fallback) When Should You Use It? 1. Debugging "Production-Only" Bugs
Navigating Environment Variables: Why .env.local.production Matters
While most developers are familiar with the standard .env or .env.production files, the file is a specialized tool that often causes confusion. Here is everything you need to know about why it exists and how to use it correctly. What is .env.local.production ? .env.local.production
: Tells the framework to ignore this file in your version control (Git). This file is meant to stay on your machine or the specific server it was created on.
: Tells the framework to load these variables only when the app is running in a production environment (e.g., after running npm run build ). (The highest file-based priority for production)
If you are deploying your app to a VPS (like DigitalOcean or Linode) manually, you might not want to hardcode your production database password into .env.production (which is usually tracked in Git). Instead, you create a .env.local.production file directly on the server. The app will prioritize it, keeping your secrets out of the codebase. 3. Avoiding Git Conflicts
Are you looking to set this up for a project specifically, or are you using a different frontend framework ? Here is everything you need to know about
Since .env.local.production is (by convention) added to your .gitignore , it is the safest place to store overrides that are unique to your setup. This ensures you don't accidentally push your personal production-level API keys to the shared repository. Best Practices