Formatters
YAML Formatter
Clean up complex YAML configurations with our free online formatter. Instantly fix indentation and nesting issues to ensure your files are both readable and valid for your development pipelines.
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Output
Indentation:
Clean up complex YAML configurations with our free online formatter. Instantly fix indentation and nesting issues to ensure your files are both readable and valid for your development pipelines.
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Best Practice
Always use spaces instead of tabs in YAML, as tabs are not allowed for indentation by the specification.
Did You Know?
YAML is a superset of JSON, meaning any valid JSON file is technically also a valid YAML file.
YAML (YAML Ain't Markup Language) is a human-friendly data serialization standard commonly used for configuration files. It relies heavily on indentation to define structure, which makes it highly readable but also prone to errors if spacing is inconsistent. Because it is used in critical infrastructure tools like Docker and Kubernetes, maintaining proper formatting is essential for system stability.
Tip
Use the '---' separator to define and manage multiple YAML documents within a single configuration file.
For local development, we recommend using Prettier or specialized YAML extensions in your IDE. To maintain quality across teams, integrate YAML linting into your CI/CD pipelines using tools like yamllint. This ensures all configuration changes are validated and formatted according to your standards before they reach production.
Q: Does this tool support Kubernetes manifests? A: Yes, it is fully compatible with K8s YAML files, helping you organize nested specs and metadata correctly.
Q: Is my data secure? A: Absolutely. All processing happens locally in your browser, and your configuration data is never stored on our servers.
Q: Can I use tabs for indentation? A: While the tool handles them, the YAML specification officially forbids tabs for indentation; we recommend using spaces for compatibility.