YAML Formatter
Format and beautify YAML data with consistent indentation and spacing. This tool takes messy or inconsistent YAML and formats it properly. Useful for cleaning up configuration files and ensuring consistent formatting across your YAML documents.
When to use this tool
Your YAML file is messy or inconsistently indented.
You want clean diffs and consistent formatting for reviews.
Examples
Normalize list indentation
Input
services:
- name: api
ports:
- 3000Output
services:
- name: api
ports:
- 3000Lists align under their parent key with consistent spacing.
Developer use cases
Normalize configuration files before committing.
Improve readability of multi-service YAML manifests.
Common mistakes to avoid
Formatting invalid YAML without fixing syntax errors first.
Assuming comments will be preserved after formatting.
Format and behavior notes
Formatter uses 2-space indentation by default.
Formatting changes whitespace only, not data values.
Related Tools
Frequently Asked Questions
How do I format YAML?
Paste your YAML data into the editor and click the Format button. The YAML will be automatically formatted with consistent indentation.
What indentation does the formatter use?
The formatter uses 2 spaces per indentation level, which is the most common YAML formatting standard.
Will formatting change my YAML data?
No, formatting only changes whitespace and indentation. The actual data structure and values remain the same.