Docker Compose Validator
Paste a docker-compose.yml and check it for common structural problems before running it.
Paste your docker-compose.yml below - this tool checks it's valid YAML and reviews the structure each service typically needs.
This checks common structural requirements only - always test with `docker compose config` for GitHub's own full validation before deploying.
What Does This Tool Check?
It parses your Compose file and checks that it's valid YAML, that a services block exists, and that each service defines either an image or a build context - plus reviewing ports, volumes, environment, networks, and depends_on for common mistakes.
Why Use This Tool?
A Compose file with a structural mistake often fails with a terse error only after you try to run it. Catching common issues (like a service with neither an image nor a build context) before that point saves a debugging cycle.
How to Use It
- Paste your docker-compose.yml content.
- Click Validate.
- Review errors (likely to break the file) and warnings (worth double-checking).
Limitations
This checks common structural requirements, not full compatibility with every Docker Compose version's schema, and it does not verify that referenced images or build contexts actually exist.