Format and beautify YAML code with proper indentation. Transform messy YAML into clean, readable configuration files with consistent spacing and structure.
YAML (YAML Ain't Markup Language) is a human-readable data serialization format widely used for configuration files (Docker Compose, Kubernetes, CI/CD pipelines). Proper YAML formatting with consistent indentation is critical because YAML relies on indentation for structure — even a single misplaced space can break the parsing.
Formatted YAML = Consistent indentation (2 spaces) + Proper key-value alignment + Clean list formattingYAML formatting ensures consistent 2-space indentation (the YAML standard), proper alignment of key-value pairs, clean multi-line string formatting, and consistent list item markers. Since YAML uses indentation to define structure, formatting is not just cosmetic — it ensures correctness.
| Input | Output |
|---|---|
| server:port:3000:host:localhost:debug:true | server: port: 3000 host: localhost debug: true |
| items:-name:First-value:1-name:Second-value:2 | items: - name: First value: 1 - name: Second value: 2 |
| database:{host: localhost, port: 5432, name: mydb} | database: host: localhost port: 5432 name: mydb |