Env File Toolkit#

Swiss-army knife for .env file management. Validate syntax, diff environments, generate templates, merge files, and check for missing keys.

Commands#

Validate#

Check .env syntax, find duplicates, empty values, and formatting issues:

bash

python3 scripts/env_toolkit.py validate .env

Diff#

Compare two .env files — shows keys only in one file and changed values:

bash

python3 scripts/env_toolkit.py diff .env.local .env.production

Template#

Generate a .env.example with smart placeholders (strips secrets, infers types):

bash

python3 scripts/env_toolkit.py template .env
python3 scripts/env_toolkit.py template .env -o .env.example
python3 scripts/env_toolkit.py template .env --keep-values  # keep actual values

Merge#

Merge multiple .env files (later files override earlier):

bash

python3 scripts/env_toolkit.py merge .env.defaults .env.local -o .env.merged

List Keys#

List all variable names in a .env file:

bash

python3 scripts/env_toolkit.py list-keys .env
python3 scripts/env_toolkit.py list-keys .env --with-values

Check Missing#

Verify a target .env has all keys from a template:

bash

python3 scripts/env_toolkit.py check-missing .env.example .env
python3 scripts/env_toolkit.py check-missing .env.example .env --strict

Dependencies#

• Python 3.8+ (stdlib only, no pip packages needed)