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Code & Data Tool
YAML Validator
Validate common YAML indentation and key structure.
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About this tool
What is YAML Validator?
YAML Validator checks common YAML indentation and key structure problems. It helps you catch mistakes in configuration files before they cause confusing errors elsewhere.
Useful when you need to
- Check a configuration file
- Find a mis-indented list
- Learn how YAML nesting works
How to use
How to use YAML Validator
01 02 Validate
Run the check.
03 Read the result
Look at the reported line or issue.
04 Fix and re-run
Edit and validate again.
Tips
Get better results
- Use spaces for indentation, not tabs.
- Quote strings that contain special characters such as colons.
FAQ
Frequently asked questions
Does it support every YAML feature?
It covers common structures, not every advanced feature.
Is it private?
Yes.
Can it fix errors?
No, it reports them. Fix them in the editor.
More practical guides · File handling and privacy · Report an incorrect instruction