YAML formatter
Format and validate YAML data.
Runs in your browser
Paste YAML to validate and format it.
OutputText · 0 bytes
Your result will appear hereAdd your input, choose the options and run the tool.
Your input stays on this device. Nothing is uploaded or saved.
About YAML formatter
Format YAML with consistent indentation while checking for syntax problems, duplicate keys, and unsupported tags.
When to use it
Check YAML configuration before a deployment or tidy a copied configuration snippet.
Input: {name: demo, enabled: true}
Output:
name: demo
enabled: trueHow to use it
- Paste a YAML document.
- Choose Format YAML.
- Copy the formatted result.
Limits & privacy
Input is limited to 256 KiB. Aliases are bounded; values that would lose numeric precision are rejected. Processing stays in your browser.
Use this tool from the API reference or connect through the SDK, CLI, SSH, or MCP. Hosted calls share your plan allowances.