YAML Formatter
Format and beautify YAML files. Free online YAML formatter with validation and syntax highlighting.
Embed this toolAdvertisement
Ad
What is YAML?
YAML is a human-readable data serialization language often used for configuration files, API specifications (like OpenAPI), and data exchange. Its minimal syntax relies on indentation rather than brackets or closing tags.
YAML Basics
- Key-Value Pairs: Written as
key: value - Lists: Denoted with a hyphen and space, e.g.,
- item - Indentation: Uses spaces (not tabs) to represent nesting
- Comments: Start with
#and continue to the end of the line - Scalars: Strings, numbers, booleans, and null values
Frequently Asked Questions
YAML (YAML Ain't Markup Language) is a human-friendly data serialization standard for all programming languages. It is commonly used for configuration files, API definitions, and data exchange.