YAML Formatter
Format and validate YAML files.
Formatting Features:
- Consistent indentation throughout
- Preserves comments and structure
- Handles nested objects and arrays
- Key-value pair alignment
- Configurable spacing options
About YAML Formatter
YAML Formatter parses and re-serializes YAML with consistent indentation and style, making configs easier to read and review. It catches syntax errors at the same time, so you can both clean up and validate in one step. This is particularly useful for Kubernetes manifests, GitHub Actions workflows, and Ansible playbooks that tend to accumulate inconsistent spacing over time.
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Frequently Asked Questions
Is YAML Formatter free?
Yes, completely free. No signup, no account, no usage limits. Use it as much as you need.
Is my data secure?
All processing happens directly in your browser using JavaScript. Your data is never sent to any server, stored, or shared. It stays entirely on your device.
Does the formatter change the meaning of my YAML?
No. Formatting only adjusts whitespace and style. The parsed data structure remains identical before and after formatting.
Will it preserve YAML comments?
Comments in YAML are not part of the parsed data model, so they are typically stripped during format and re-serialize cycles. If preserving comments is important, edit the file manually.