YAML Tools

Online YAML Formatter

Online YAML Formatter — an online YAML formatter that tidies indentation. It runs entirely in your browser, so nothing is uploaded and it works offline.

Client-sideRuns entirely in your browser — your data never leaves your device.

Online YAML Formatter is a free YAML Tools utility that runs entirely in your browser — nothing you enter is uploaded.

YAML input
Formatted YAML



  
How to use Online YAML Formatter

  
    
      
  1. Drop your YAML into the field at the top of Online YAML Formatter.
    2. 
      
  2. Use the Indent setting to control the result.
    3. 
      
  3. Watch the output update instantly while you adjust the YAML.
    4. 
      
  4. Use Copy to keep or reuse the result.
    5. 
  

  
About this tool

  
Online YAML Formatter is a static, client-side tool with no backend. Online YAML Formatter processes YAML in your browser, converting or validating the document you paste locally.

  
Nothing about your file is uploaded. It behaves the same on desktop and mobile, with nothing stored remotely.

  
Frequently asked questions

  

      
What does Online YAML Formatter do?
Use Online YAML Formatter to format your input without installing anything using the Indent control; everything happens client-side.

      
Do I need an account for Online YAML Formatter?
No — Online YAML Formatter needs no account, sign-up or installation.

      
Is my input private in Online YAML Formatter?
Yes — your input never leaves your device; Online YAML Formatter does all the work in your browser.

      
How does Online YAML Formatter handle YAML indentation errors?
Online YAML Formatter reports the problem inline so you can fix the indentation, all within your browser.

      
Can I use Online YAML Formatter without a connection?
Yes — after the first load Online YAML Formatter runs entirely offline.

  

  
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