YAML Formatter
Format YAML with consistent indentation, after validating it, keeping comments and multiple documents. Free and private: runs in your browser.
Paste Kubernetes manifests, GitHub Actions, Docker Compose or any YAML to clean up indentation and inline flow styles.
Runs entirely in your browser. Nothing you paste is uploaded or stored.
Use cases
- Clean up code or data before sharing it in a ticket or pull request.
- Make minified output readable while debugging.
- Shrink files before deploying.
Frequently asked questions
Are YAML comments kept?
Yes. The formatter keeps comments and document separators (---).
Is the YAML Formatter free?
Yes. It is free with no sign-up, and it runs entirely in your browser, so your input is never uploaded or stored.
Will formatting change how my code behaves?
Formatting only changes whitespace and layout. Minifying removes comments and whitespace and may shorten names, so keep the original source in version control.
Related tools
Checking one snippet is a start. Scan your whole repository for free with CodeInspector.