Docker Compose Validator
Check docker-compose.yml files for structure, services, ports, volumes and syntax.
Compose YAML
Result
What is Docker Compose Validator?
Docker Compose Validator examines a compose file's YAML structure and common definitions for services, ports, volumes, networks, and related settings. It helps catch configuration mistakes before Docker attempts to create containers and makes a multi-service setup easier to review as one document.
How to use Docker Compose Validator
Paste the docker-compose.yml content into the validator and review reported syntax, structure, service, port, and volume issues.
When is Docker Compose Validator useful?
Docker Compose Validator is useful when checking Compose configuration before deployment or diagnosing why a multi-container setup does not start as expected.
Example
A practical example is validating a compose file with a web service, database service, mapped port, and persistent volume.
Practical notes
Validation cannot confirm that referenced images, paths, secrets, health checks, or host ports work in the deployment environment. Follow it with Docker's own compose config command and a controlled startup using the same Docker Compose version as production.