YAML Formatter
Format, beautify, and validate YAML files with error detection.
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What is this tool?
YAML formatter beautifies YAML documents with proper indentation, alignment, and syntax highlighting. YAML is widely used for configuration files (Docker Compose, Kubernetes, CI/CD, Ansible). The formatter fixes inconsistent indentation, removes trailing spaces, sorts keys optionally, and validates YAML syntax.
How to use
- 1
Paste YAML
Input your YAML content.
- 2
Format
Click to beautify with 2-space indentation.
- 3
Copy result
Get the formatted YAML.
Frequently Asked Questions
Why is YAML indentation important?
YAML uses indentation (spaces, not tabs) to define structure. Inconsistent indentation causes parse errors. Standard practice is 2 spaces per level. The formatter ensures consistent indentation throughout the document.
Supports YAML anchors?
Yes, anchors and aliases preserved.
Is my data processed locally?
Yes, all processing happens in your browser. No data is sent to any server.