YAML Validator
Check a YAML file before you commit it — errors are shown with their line and column.
● Your files are processed locally in your browser and are not uploaded to our servers.
How it works
The YAML is parsed with js-yaml (YAML 1.2) as you type. When there's an error, the message, the line and column and a snippet of the surrounding lines are shown. Multi-document files are supported.
FAQ
Tabs in YAML?
YAML forbids tabs for indentation — use spaces. This is the most common error.