YAML Formatter
Format, validate, and convert YAML. Supports YAML ↔ JSON conversion.
Result...What is YAML?
YAML is a human-readable data serialization format. It's used in Docker Compose, Kubernetes manifests, GitHub Actions workflows, Ansible playbooks, and many config systems.
YAML vs JSON
- YAML: Readable, comments allowed, indentation-based
- JSON: Strict, no comments, machine-friendly
Privacy
Everything runs in your browser. Nothing is uploaded.
Frequently Asked Questions
What is YAML?
YAML (YAML Ain't Markup Language) is a human-readable data format used for config files (Docker, Kubernetes, GitHub Actions, Ansible).
How is YAML different from JSON?
YAML is more readable (no quotes or braces needed), supports comments, and allows multi-line strings. JSON is stricter and better for machine parsing.
Can I convert YAML to JSON?
Yes. Choose 'YAML → JSON' mode.
Is it free?
Yes, completely free.
Is my data uploaded?
No. Everything runs in your browser.