YAML Formatter
Format and validate YAML online for free. Normalize indentation and find syntax errors with exact line numbers — runs in your browser.
Formatted output
Valid YAML
name: blackdroid.dev
free: true
tools:
- json-formatter
- yaml-converter
stats:
users: 1024
rating: 4.9
About YAML Formatter
Paste any YAML document to normalize its formatting and validate the syntax. Errors are reported with exact line and column numbers.
Powered by the same YAML parser used in production tooling. Everything runs locally in your browser — no upload required.