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Case Converter

Convert identifiers between camelCase, PascalCase, snake_case, CONSTANT_CASE, kebab-case, Title Case and more. Handles acronyms like XMLHttpRequest and converts many lines at once.

Runs locally — your input never leaves this page.

camelCase 
 
 
 PascalCase  
 
 
 
 snake_case  
 
 
 
 CONSTANT_CASE  
 
 
 
 kebab-case  
 
 
 
 Train-Case  
 
 
 
 dot.case  
 
 
 
 path/case  
 
 
 
 Title Case  
 
 
 
 Sentence case  
 
 
 
 lowercase  
 
 
 
 UPPERCASE  
 
 
 
 
  
 
 
 
How to use
 
     
  1. Type or paste identifiers or phrases — one per line to convert many at once.
  2. Every naming style is shown side by side; click Copy on the one you need.
  3. Acronyms and numbers are split sensibly: XMLHttpRequest → xml_http_request, userID2 → user_id_2.
    4.  
  
Common examples
   
FAQ
 
 
  Which style should I use?  
Follow the language: camelCase for JavaScript/Java variables, PascalCase for classes and types, snake_case for Python and SQL columns, CONSTANT_CASE for constants and environment variables, kebab-case for URLs, CSS classes and CLI flags.
 
  Does it work with non-English words?  
Yes. Words are split on Unicode letter and number boundaries, so accented letters are kept. Scripts without letter case, such as Chinese, are left as they are.
 
 
 
  Report a bug or suggest a feature →