Docker Compose Validator — Lint compose.yml Online
Validate docker-compose.yml for missing images, port collisions, depends_on cycles, and undeclared networks/volumes. Catch errors before docker compose up.
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docker-compose.yml
Compose checks
Paste a compose.yaml file to check services, ports, depends_on, and references.
About this tool
Port collision checkdepends_on cyclesService rulesNo uploadPrivate
How to use
- Paste your Docker Compose YAML.
- Review syntax errors first, then structural findings.
- Fix port conflicts and missing image/build fields.
- Re-run until clean.