Case Converter

This tool helps you quickly convert text into different letter cases, useful for coding, writing, and data formatting. Supported formats include:

• UPPERCASE: Converts all letters to uppercase, e.g. "Hello World" → "HELLO WORLD"
• lowercase: Converts all letters to lowercase, e.g. "Hello World" → "hello world"
• Title Case: Capitalizes the first letter of each word, e.g. "hello world" → "Hello World"
• Sentence case: Capitalizes the first letter of each sentence, e.g. "hello. how are you?" → "Hello. How are you?"
• Toggle Case: Switches uppercase to lowercase and vice versa, e.g. "Hello" → "hELLO"
• camelCase: Removes spaces and capitalizes each word except the first, e.g. "hello world" → "helloWorld"
• snake_case: Uses underscores between words, e.g. "hello world" → "hello_world"
• kebab-case: Uses hyphens between words, e.g. "hello world" → "hello-world"

Using the tool is simple:

• Paste or type your text into the input box
• Click a conversion button (e.g. camelCase, UPPERCASE, etc.)
• The transformed result will be applied immediately
• Click the "Copy" button to copy the result
• Click "Clear" to reset the input

Example use cases:

• Convert variable names to camelCase or snake_case for coding
• Standardize headings in text content
• Quickly format text for documentation or writing

This tool is useful in many scenarios, including:

• Frontend development: formatting variable names (camelCase, snake_case)
• Content editing: standardizing titles and sentences
• Data processing: normalizing text formats in bulk
• Writing: quickly adjusting text style for better readability

No, the original input is not permanently modified. The tool generates a transformed version based on your input and displays it in the same field. You can always re-enter or clear the text.

Yes, the tool supports Chinese, English, and most special characters. However:

• camelCase, snake_case, and kebab-case work best with English words
• Chinese text is usually not split into words unless separated by spaces or punctuation

No. All processing happens locally in your browser. Your input is never uploaded, stored, or sent to any server.