YAML Formatter
Format YAML files with consistent indentation and surface syntax errors before using them in configs.
YAML Formatter
Format YAML files with consistent indentation and surface syntax errors before using them in configs.
About YAML Formatter
Prettier-based YAML formatting
The formatter uses the YAML parser from Prettier to rewrite indentation and spacing consistently. If the input cannot be parsed as YAML, the tool reports the syntax problem instead of returning a misleading formatted result.
Choose readable indentation
YAML is indentation-sensitive, so small spacing mistakes can change meaning or break parsing. The tool lets you format with a consistent tab width before pasting content into Kubernetes, Ansible, Docker Compose, or other config files.
Format locally in the browser
Formatting runs in the browser, which is useful for reviewing deployment snippets or environment-specific configuration without sending the content to a remote service.
FAQ
Common questions and answers about this topic.
What does this YAML formatter do?
It auto-formats your YAML data with consistent indentation and spacing, making configuration files easier to read and maintain.
Can I customize the indentation?
Yes, adjust from 2 to 8 spaces, or switch to tabs. YAML specifications commonly recommend 2 spaces.
Does it validate the YAML?
Yes, if your YAML contains syntax errors, the tool will display an error message indicating where the problem is, helping you quickly fix invalid YAML.
Is my data sent to any server?
No, YAML formatting happens entirely in your browser. Your configuration data is processed locally with JavaScript and never sent to any server.