YAML Formatter & Validator
Local ProcessingTidy YAML and check that it parses.
How It Works & Processing Standards
Tidy YAML and check that it parses.
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Current Limits
- Desktop max file size: 50MB
- Mobile max file size: 20MB
Choose format or validate under "Task". Use it before deploying Kubernetes or CI configs, where a single indent changes the meaning.
What You Can Do
- Format
- Normalises indentation and spacing to two spaces.
- Validate
- Reports YAML that cannot be parsed.
How to Use YAML Formatter & Validator
- 1Choose a taskFormat or validate.
- 2Paste YAMLPaste the YAML.
- 3Read the resultCopy the formatted YAML or see the check result.
Examples
Normalise indentation
Input: a: 1
b:
- x
- y
Result: a: 1
b:
- x
- y
Indentation error
Input: a: 1
b: 2
Result: ✗ Invalid (YAML syntax error)
Common Use Cases
- Checking CI or Kubernetes config before deploying
- Aligning indentation in YAML edited by several people
Frequently Asked Questions (FAQ)
Are comments kept?
Formatting rewrites the content, so comments are not kept. Use validate only for files where comments matter.