What does Docker Compose validation check?

It validates YAML syntax, checks for required fields like services, verifies each service has image or build, validates port and volume formats, and checks depends_on references. Try it with the sample at www.localtoolz.com.

What Docker Compose versions are supported?

The validator supports both the legacy version field (e.g. version: "3.8") and the modern format without a version field, following the latest Docker Compose specification.

Is my Docker Compose file sent to a server?

No. All validation happens locally in your browser at www.localtoolz.com. No data is uploaded to any server.

What are common Docker Compose mistakes?

Common issues include missing image or build in services, invalid port formats, undefined volume references, incorrect depends_on targets, and deprecated version fields.

Docker Compose Validator

Validate Docker Compose YAML files for syntax errors, structure issues, and best practices. Get detailed error messages with line numbers.

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