Valid YAML — Ready to use
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Validate
Check YAML syntax instantly. Detailed error messages with line numbers for quick debugging.
Convert
Convert between YAML and JSON formats with one click. Perfect for config migrations.
Format & Minify
Pretty print with proper indentation or compress to a single line. Toggle as needed.
Free YAML formatter and validator. Format YAML, validate YAML syntax, convert YAML to JSON and JSON to YAML online.