YAML Formatter
Format, validate YAML data and convert to JSON with syntax highlighting and multiple format options
YAML Validation Error
YAML:
Convert:
About YAML Formatter
YAML (YAML Ain't Markup Language) is a human-readable data serialization format commonly used for configuration files in DevOps, cloud infrastructure, and application development.
This YAML Formatter tool helps you format, beautify, minify, and validate your YAML documents. It also supports converting YAML to JSON format with syntax highlighting.
Key Features
Format and beautify YAML with customizable indentation
Minify YAML to compact flow style
Validate YAML syntax and structure
Convert YAML to JSON format
Syntax highlighting with dark theme
Option to sort keys alphabetically
Convert JSON to YAML format
YAML Syntax Basics
Key-Value Pairs: Use colon followed by space (key: value)
Lists: Use dash followed by space (- item)
Nested Structures: Use consistent indentation (spaces only)
Comments: Start with hash symbol (# comment)
Multi-line Strings: Use | (literal) or > (folded)
Anchors & Aliases: Reuse content with & and *
Common Use Cases
Kubernetes manifest files (Deployments, Services, ConfigMaps)
Docker Compose configuration
CI/CD pipelines (GitHub Actions, GitLab CI, Azure DevOps)
Ansible playbooks and inventory files
Application configuration files (Spring Boot, Ruby on Rails)