Convert .env files for Docker Compose
An .env file stores configuration as KEY=value pairs. Docker Compose can use those values directly, but its environment section has a YAML structure that is inconvenient to type for a long list of variables.
Paste your variables into this converter to generate an environment: block ready for a docker-compose.yml or compose.yaml file. Each value is safely quoted as a YAML string.
How the YAML output works
The output uses Docker Compose list syntax, such as - "APP_ENV=production". This format keeps the variable name and value together and avoids YAML interpreting colons, hashes, spaces, or boolean-like values unexpectedly.
Comments from the original file are kept in the generated block. Empty lines and invalid lines are skipped, while quoted .env values are normalized before they are written to the YAML output.
Handle secrets carefully
Conversion happens entirely in your browser and no content is sent to a server. Still, avoid committing passwords, tokens, and private keys to version control; use Docker secrets, an ignored environment file, or a deployment secret manager for production credentials.