// Valid YAML
name: Acme
version: 1.4.2
active: trueYAML Validator
Check YAML syntax and surface exact line and column for any error.
YAML input
Status
Your input is processed locally and isn't uploaded for processing. Verify by opening DevTools → Network — there are no requests carrying your data.
YAML Validator examples.
// Invalid: mixed indentation
user:
name: John
age: 25// Invalid: tab character
key: valueFrequently asked questions.
Does it check schema?
No — this is a syntax validator. JSON Schema and OpenAPI validation are on our roadmap.
Is my YAML uploaded?
No. The check runs entirely in your browser.
What does the error mean?
It points to the exact line and column where the parse failed. The hint describes the most common cause.