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YAML Formatter

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YAML Formatter — Beautify YAML Online Free

What is YAML Formatter?

Format and beautify YAML with consistent 2-space indentation.

Format YAML files with proper indentation and line breaks.

How to Use YAML Formatter

  1. Paste or type your input into the editor on the left panel.
  2. Results update automatically while you type. You can also press Ctrl+Enter to force a refresh.
  3. View the result in the output panel on the right with full syntax highlighting.
  4. Use Copy or Download to export the result.
  5. Drag and drop .json or .txt files directly into the editor.

Example

Input:

name: John
age: 30
address:
  city: NYC

Output:

name: John
age: 30
address:
  city: NYC

Common Use Cases

  • Format config files
  • Clean up YAML output

Common Errors

    Why Use Our YAML Formatter?

    • 100% client-side — your data never leaves your browser. No server processing, no data collection.
    • No sign-up required — start using the tool instantly with no registration or installation.
    • Keyboard shortcuts — press Ctrl+Enter to run, ? for shortcuts list, Ctrl+B to toggle sidebar.
    • Persistent state — your input is automatically saved across sessions using local storage.
    • IDE-style interface — Monaco Editor (the engine behind VS Code) with syntax highlighting and error detection.
    • Multi-format conversion — convert between JSON, XML, CSV, and YAML without switching tools.

    Frequently Asked Questions

    What is YAML?

    YAML is a human-readable data serialization format often used for configuration files.

    Try YAML Formatter Now

    Paste your data into the editor above for instant processing. Use Ctrl+Enter anytime to re-run quickly.

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