Online YAML Formatter and Validator

Online YAML Formatter, Minifier and Validator

The online YAML formatter organizes and validates YAML configuration files. It can reformat inconsistent indentation into a clear hierarchy or output a compact flow-style representation, with syntax errors located by line and column. It is suitable for Kubernetes, CI/CD and Docker Compose YAML files.

YAML Formatting and Beautification

The tool uses a standard YAML parser to regenerate indentation levels and list structures. It supports 2, 4 and 8 spaces for consistent formatting.

YAML Minification

Nested structures can be output in compact flow style to reduce line count and file size, which can be useful for transmission or embedding in other configuration data.

YAML Syntax Validation and Error Location

The validator detects common syntax problems such as incorrect indentation, unmatched brackets or quotes and missing colons, and reports the relevant line and column. Error locations can be used to select the problematic area in the input.

Common Uses

• Organize Kubernetes and Docker Compose configuration files.
• Check YAML syntax in CI/CD pipelines.
• Compact YAML for transmission or embedding.
• Read and organize complex YAML configuration files.

Privacy and Data Security

YAML parsing, formatting and validation are performed entirely in the browser. Data is not uploaded to the server. Remove sensitive keys and tokens before processing configuration files when appropriate.