YAML
A human-readable data serialization format built around indentation, mappings, sequences, and scalar values, commonly used for configuration and structured data.
General information
- Format name
- YAML Ain't Markup Language
- Extensions
.yaml.yml- MIME type
application/yaml- Category
- data
- Data type
- Text
Common uses
Configuration files
CI/CD pipelines
Infrastructure definitions
Application settings
Structured data exchange
Related formats
Technical resources
| Resource | Publisher | Link |
|---|---|---|
| RFC 9512 — YAML Media Type | RFC Editor | Open resource ↗ |
| YAML Specification | YAML Language Development Team | Open resource ↗ |
Record information
- Verified
- October 4, 2026
- Last updated
- October 4, 2026