The .env.development file is a specialized configuration file used in modern web development to store specifically for a local development workflow. By using this file, developers can define settings like local database URLs or API keys that differ from those used in staging or production environments. What is the Purpose of .env.development?
: Credentials for sandbox environments or mock payment gateways (like Stripe’s test keys). Best Practices for Security and Efficiency Environment variables - Vercel
: Using a local development database rather than the live production database. .env.development
: Share a standard set of non-sensitive development variables with your team via a template (often called .env.example ). Common Use Cases
In many frameworks like React , Vite, and Next.js, the build tools automatically look for a .env.development file when you run a local development command (such as npm run dev ). This allows you to: : Credentials for sandbox environments or mock payment
: Keep local development settings separate from production secrets.
: Avoid manually changing variables every time you move from writing code locally to deploying it. Common Use Cases In many frameworks like React
: Enabling "debug mode" or experimental features only while building.
The .env.development file typically contains "safe" or local-only information. Key examples include:
: Pointing to a local server (e.g., http://localhost:3000 ) instead of a production domain.