YAML Formatter
Format and beautify YAML with consistent indentation
Processed on your device — never uploaded
YAML Input
Formatted Output
Frequently Asked Questions
Why is indentation so important in YAML?
YAML uses indentation to define structure and hierarchy instead of brackets or tags, so incorrect indentation will change the meaning of your data or cause parsing errors.
How many spaces should I use for YAML indentation?
Two spaces per level is the most common convention in YAML files. Tabs are not allowed in YAML, so spaces must be used for indentation.
Can this tool fix broken YAML indentation?
Yes, paste your YAML and click "Format" to parse it and regenerate it with clean, consistent two-space indentation throughout the document.
What is the difference between YAML and JSON?
YAML is a superset of JSON that uses indentation instead of braces, supports comments, and is generally more human-readable, making it popular for configuration files.