: It is strictly for local use and should never be committed to version control (Git).
Tools like Next.js follow a strict load order to determine which variable takes precedence. Generally, the more specific a file is, the higher its priority: .env.development.local
Managing configuration across different environments is a cornerstone of modern web development. While standard .env files are common, the specifically named plays a critical role in local workflows, particularly within ecosystems like Next.js and Create React App . What is .env.development.local ? : It is strictly for local use and
: When working with third-party services like OpenAI, you can store your personal OPENAI_API_KEY here so it doesn't leak into the repository. While standard
The .env.development.local file is a specialized environment variable file used to store configuration settings and sensitive information (like API keys or database credentials) specifically for a developer's during the development phase . Its primary characteristics include:
(Highest priority for local development) .env.local .env.development .env (Lowest priority; general defaults)
: If you are running a local instance of MongoDB or PostgreSQL, you can define your DATABASE_URL here.