CLI tool to sync and validate .env files against .env.example — detect missing, extra, or mismatched environment variables
Project description
dotenv-validator
CLI tool to sync and validate .env files — detect missing, extra, or mismatched environment variables between .env.example and .env.
Why?
Every project with environment variables has the same problem:
- You add a new config to
.env.examplebut forget to update.env - Someone deploys without the right env vars set
- You waste hours debugging when it's really
DATABASE_URLmissing
Install
pip install dotenv-validator
Usage
Basic comparison
dotenv-validator
Compares .env.example with .env in current directory.
Auto-fix missing keys
dotenv-validator --fix
Strict mode
dotenv-validator --strict
JSON output (for CI)
dotenv-validator --json
Initialize .env.example
dotenv-validator --init
Custom file paths
dotenv-validator --example .env.dev.example --env .env.production
Use in CI (GitHub Actions)
- name: Validate env files
run: pip install dotenv-validator && dotenv-validator --json
License
MIT
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