YAML Formatter and Validator
Validate, format, and minify YAML documents for config files, CI pipelines, and API tooling.
About This Tool
This free online YAML Formatter and Validator helps you clean and validate YAML quickly before using it in deployment configs, workflows, and API integrations. Use validate mode to confirm parsing correctness and identify syntax issues early. Use format mode to normalize indentation and improve readability for reviews and troubleshooting.
Minify mode converts YAML to compact flow style for concise transport or snapshots. Processing happens in your browser, so you can iterate quickly without sending content to external services.