YAML Formatter
Format, validate, and pretty print your YAML files with customizable indentation levels.
Formatting
Indent:
Input YAML
Formatted YAML
What is a YAML Formatter?
A YAML Formatter is a developer utility that parses YAML (YAML Ain’t Markup Language) data, validates its syntax, and formats its layout. Because YAML relies strictly on indentation, this tool ensures spacing consistency, auto-corrects list and key formats, and flags common issues like forbidden tab characters.
Features
- Custom Indentation: Pretty print using 2 spaces or 4 spaces.
- Auto Indentation Mapping: Automatically detects the original indentation structure and translates it to your desired output spacing.
- Tab Detection: Highlights where tab characters are wrongly used instead of spaces.
- Multiline String Support: Safely formats multiline strings (using
|and>) without disrupting relative formatting. - Comments and Spacing: Retains key-value comments while standardizing spaces around keys, list markers, and values.
Example Input
database:
host: "localhost"
port: 5432
users:
- name: "admin"
roles:
- "superuser"Example Output
database:
host: "localhost"
port: 5432
users:
- name: "admin"
roles:
- "superuser"