Case Converter
Convert text to UPPER, lower, Title, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE. Free online tool.
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How to Use
Enter your text
Type or paste text into the input field. Spaces, underscores, hyphens, and camelCase word boundaries are all detected automatically.
View all conversions
All 8 case formats are displayed instantly in the grid below the input.
Copy the result you need
Click the Copy button next to any format to copy that specific result to your clipboard.
Clear and start over
Click Clear to reset the input and all results.
FAQ
Words are split by spaces, underscores (-), hyphens (-), and camelCase/PascalCase boundaries. For example, "helloWorld", "hello_world", "hello-world", and "Hello World" are all recognized as two words: "hello" and "world".
camelCase starts with a lowercase letter and capitalizes each subsequent word (e.g., helloWorld). PascalCase capitalizes every word including the first (e.g., HelloWorld). PascalCase is also called UpperCamelCase.
CONSTANT_CASE (also called SCREAMING_SNAKE_CASE) uses all uppercase letters with underscores as word separators (e.g., HELLO_WORLD). It is commonly used for constants in programming languages like Python, Java, and JavaScript.
Japanese text does not use traditional word separators, so case conversion is not meaningful for pure Japanese text. The tool works best with ASCII / Latin text. Mixed inputs (e.g., Japanese with English words separated by spaces) can still be partially processed.