YAML Validator & Formatter

Validate and format YAML files. Convert between YAML and JSON.

#yamlformatter #yamlvalidator #yamllint

Input YAML

Output

Results will appear here...

How to use this tool

Follow these steps to get the most out of the YAML Validator & Formatter.

Paste your YAML content into the editor.

The tool validates the syntax in real-time.

Click 'Beautify' to fix indentation levels.

Use the controls to convert to JSON if needed.

The guide

YAML vs JSON

YAML is designed to be human-readable and is widely used for configuration files (Docker, Kubernetes, Home Assistant). JSON is stricter and better for machine-to-machine data exchange (APIs, Database storage).

Key Differences

Comments: YAML supports comments (#), JSON does not.
Syntax: YAML uses indentation (whitespace), JSON uses braces {}.
Strictness: YAML is more lenient with quotes, while JSON requires double quotes for all keys.

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