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🔤 Case Conversion Functions:

• All Uppercase: Convert all letters in the text to uppercase, e.g., "hello world" → "HELLO WORLD"
• All Lowercase: Convert all letters in the text to lowercase, e.g., "HELLO WORLD" → "hello world"
• Title Case: Capitalize the first letter of each word, lowercase others, e.g., "hello world" → "Hello World"
• Sentence Case: Capitalize the first letter of each sentence, keep others as is, e.g., "hello. world!" → "Hello. World!"
• Toggle Case: Reverse the case of all letters, e.g., "Hello World" → "hELLO wORLD"
• First Letter Lowercase: Convert the first letter of the text to lowercase, e.g., "Hello World" → "hello World"

🔄 Format Conversion Functions:

• Space to Underscore: Replace spaces with underscores, e.g., "hello world" → "hello_world"
• Underscore to Space: Replace underscores with spaces, e.g., "hello_world" → "hello world"
• Space to Hyphen: Replace spaces with hyphens, e.g., "hello world" → "hello-world"
• Hyphen to Space: Replace hyphens with spaces, e.g., "hello-world" → "hello world"
• To Camel Case: Convert to camelCase naming convention, first word lowercase, subsequent words capitalized, e.g., "hello world" → "helloWorld"
• To Pascal Case: Convert to PascalCase naming convention, each word capitalized, e.g., "hello world" → "HelloWorld"
• Camel to Snake: Convert camelCase to snake_case, e.g., "helloWorld" → "hello_world"
• Snake to Camel: Convert snake_case to camelCase, e.g., "hello_world" → "helloWorld"

🧹 Clear Operations Functions:

• Clear Spaces: Remove all spaces (including spaces, tabs, etc.) from the text
• Clear Line Breaks: Remove all line breaks from the text, merging multi-line text into one line
• Clear Symbols: Remove all punctuation and special characters, keeping only letters, numbers and spaces
• Clear Numbers: Remove all numeric characters from the text
• Clear Extra Spaces: Merge multiple consecutive spaces into a single space, and remove leading/trailing spaces
• Clear All: Clear all content in the input and output text boxes

📋 Text Operation Functions:

• Copy Input: Copy the text in the input box to the clipboard
• Cut Input: Cut the text in the input box to the clipboard (copy then clear input box)
• Clear Input: Clear all content in the input box
• Copy Output: Copy the text in the output box to the clipboard
• Swap Text: Swap the content between the input and output boxes

⚙️ Options Settings:

• Auto copy result after conversion: When enabled, automatically copy the result to the clipboard after each conversion operation
• Show result in new box: When enabled, display the conversion result in a floating box at the bottom right of the page (suitable for comparison viewing)
• Preserve original case for word list: When enabled, specific words (such as brand names, abbreviations) will maintain their original case format
• Auto trim whitespace: When enabled, automatically remove leading/trailing spaces from input text and output results
• Auto convert on input: When enabled, automatically apply title case conversion while typing text

📦 Batch Operations Functions:

• Select All Input: Select all text in the input box
• Select All Output: Select all text in the output box
• Download Result: Download the output result as a .txt file to local

💎 Usage Tips:

• You can combine multiple functions, such as first "Clear Extra Spaces", then "To Camel Case"
• Use the "Swap Text" function to quickly switch between original text and conversion results
• For programming naming conversion, common combination: Space → Underscore → Snake Case → Camel Case → Pascal Case
• For data cleaning, recommended order: Clear Extra Spaces → Clear Symbols → Clear Numbers → Format Conversion