.env.sample Jun 2026

Create .env.sample , copying the exact keys but replacing your private values with placeholders.

Understanding the distinction between these two files is vital for application security and team collaboration. .env .env.sample Contains real secrets and local configuration values. Contains keys and mock placeholder values. Git Status Must be ignored (added to .gitignore ). Must be committed to the repository. Sensitivity Highly confidential (API keys, DB passwords). Publicly visible to anyone with code access. Location Stays strictly on the local machine or server. Shared across the entire development team. Anatomy of a Perfect .env.sample File

Some projects include .env.schema.json : .env.sample

: It gives new developers an immediate overview of the external configuration, services, and credentials the project requires.

JWT_SECRET=GENERATE_STRONG_SECRET_HERE_using_openssl_rand_base64_32 Create

Tools like EnvGuard , zorath-env , and varlock allow you to define a JSON or YAML schema alongside your .env.sample :

| Tool | Purpose | |------|---------| | dotenv (npm) | Load .env into process.env | | envalid | Validate env vars against a schema | | dotenv-vault | Manage sync of .env to .env.sample | | direnv / autoenv | Auto-load .env in dev shell | | check-env (CLI) | Compare .env vs .env.sample | Contains keys and mock placeholder values

Some teams keep .env.defaults (committed) with safe fallbacks, then .env (ignored) overrides.

The primary purpose of .env.sample is to:

The developer then opens the newly created .env file and swaps out the placeholders with their personal local credentials. 3. Modifying Configuration Safely When a feature requires a new environment variable: