YAML Formatter
Clean up YAML by parsing it and re-serializing it with consistent two-space indentation and normalized structure. Hand-edited YAML drifts over time: mixed indentation, inconsistent list styles and stray quoting make files harder to review. This formatter reads your YAML into a data structure and writes it back out in a canonical style, so maps, lists and scalars all follow the same rules. It handles the common config shapes you meet in Kubernetes, CI files and app settings. Because it round-trips through a parser, it also surfaces structural errors before you commit them. Paste your YAML, click format, and copy the tidy result. All processing stays in your browser, so nothing is uploaded.
How to use YAML Formatter
- Paste your YAML.
- Click format to normalize indentation.
- Copy the cleaned-up YAML.
Frequently asked questions
How does this formatter normalize YAML?
It parses your YAML and re-serializes it with clean two-space indentation, giving consistent output regardless of the input spacing.
Will it catch YAML errors?
Yes. Because it round-trips through a parser, malformed YAML fails and reports the error rather than producing bad output.
Does re-serializing change my data?
The values are preserved, though comments are not retained since the content passes through a parser that keeps only the data.
What is YAML Formatter?
Clean up YAML by parsing it and re-serializing it with consistent two-space indentation and normalized structure. Hand-edited YAML drifts over time: mixed indentation, inconsistent list styles and stray quoting make files harder to review.
Is YAML Formatter free to use?
Yes. YAML Formatter is completely free, with no sign-up and no usage limits.
Does YAML Formatter work in a web browser?
Yes. YAML Formatter runs in any modern web browser. There is nothing to download or install.
Is my data private with YAML Formatter?
Yes. YAML Formatter runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
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