Format, validate, minify, and convert YAML to JSON instantly. Pure client-side with structure analysis.
Invalid YAML
Результат
About YAML Formatter
Our YAML Formatter is a free online tool that formats, validates, minifies, and converts YAML documents instantly. Whether you're working with Docker Compose files, Kubernetes manifests, GitHub Actions workflows, or configuration files, this tool ensures your YAML is clean and valid. All processing happens entirely in your browser — your data never leaves your device.
Features
Format and beautify YAML with customizable indentation (2 or 4 spaces)
Minify YAML by removing unnecessary whitespace and comments
Validate YAML syntax and structure with detailed error reporting
Convert YAML to JSON with a single click
Structure analysis showing keys, objects, arrays, and nesting depth
One-click copy and download for formatted output
100% free, private, and client-side processing
How to Use
Paste or type your YAML document into the input area
Select the action you want: Format, Minify, Validate, or Convert to JSON
Choose your preferred indentation level (2 or 4 spaces)
Click the "Process YAML" button to see the results instantly
Use Copy or Download to save your formatted output
Common Use Cases
DevOps engineers formatting Kubernetes manifests and Docker Compose files