.env.local Direct
To fix this, create a file named .env.example (which committed to Git). This file serves as a template, showing variable names without the sensitive values:
| Feature | Description | | :--- | :--- | | | Highest. Overrides .env , .env.development , .env.production , etc. | | Version Control | Explicitly excluded (must be in .gitignore ). | | Typical Use Cases | Local API keys, different local backend URLs, feature flags, overridden ports. | | Environment | Local development only. Should not exist in build containers or production. |
The behavior of .env.local varies slightly across toolchains. Here’s how it works in the most common ecosystems. .env.local
# Example .gitignore entry .env.local .env.*.local // Example dotenv usage require('dotenv').config( path: '.env.local' )
By utilizing .env.local and similar files, developers can efficiently manage environment-specific configurations while maintaining good security practices. To fix this, create a file named
If you are having trouble with variables not loading, we can or troubleshoot file pathing.
In the modern landscape of web development—whether you’re working with Next.js, React (Vite/CRA), Nuxt, or Node.js—environment variables are the bedrock of security and configuration management. You’ve likely encountered the standard .env file. But as your application grows in complexity, a new player enters the arena: . | | Version Control | Explicitly excluded (must be in
# Database Configuration DATABASE_URL="postgresql://user:password@localhost:5432/mydb" # API Keys (Sensitive - Keep local only) STRIPE_SECRET_KEY="sk_test_4eC39HqLyjWDarjtT1zdp7dc" NEXT_PUBLIC_ANALYTICS_ID="UA-12345678-1" # Service URLs BACKEND_API_URL="http://localhost:4000/api" # Feature Flags ENABLE_NEW_DASHBOARD=true Use code with caution. Copied to clipboard Key Characteristics
NEXT_PUBLIC_GA_ID="G-XXXXXXXXXX"
: Follow standard naming conventions by using uppercase letters and underscores (e.g., API_TIMEOUT_MS ).