.env.development May 2026

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?

: Using a local development database rather than the live production database.

The .env.development file typically contains "safe" or local-only information. Key examples include: .env.development

: Credentials for sandbox environments or mock payment gateways (like Stripe’s test keys). Best Practices for Security and Efficiency Environment variables - Vercel

: Keep local development settings separate from production secrets. : Using a local development database rather than

: Share a standard set of non-sensitive development variables with your team via a template (often called .env.example ). Common Use Cases

: Enabling "debug mode" or experimental features only while building. .env.development

: Pointing to a local server (e.g., http://localhost:3000 ) instead of a production domain.