How the Case Converter Works
This formatting utility runs fully inside your browser to convert text strings between capitalizations. Standard styling structures (like Title Case and Sentence Case) are useful for writers, content creators, and editors. On the other hand, formats like camelCase or snake_case are essential for developers writing code, configuring APIs, or structuring database keys.
Supported Case Conversions
Our utility supports multiple formats grouped by use case:
- Sentence case: Capitalizes the first letter of each sentence and lowers everything else. It matches standard sentence structures after periods, question marks, and exclamation marks.
- lower case: Converts all characters in the text to lowercase.
- UPPER CASE: Converts all characters in the text to uppercase.
- Title Case: Capitalizes major words according to AP style. Articles, short prepositions, and conjunctions (such as "the", "and", "a", "of", "to") remain in lowercase unless they start or end the title.
- Capitalize Each Word: Capitalizes the very first letter of every single word, including minor words.
- camelCase: Converts text to programming notation where words are concatenated and subsequent words start capitalized (e.g.
myVariableName). - snake_case: Joins words with underscores in all lowercase (e.g.
my_variable_name). - PascalCase: Concatenates all words and capitalizes the first letter of each word (e.g.
MyClassName). - kebab-case: Connects words using hyphens in all lowercase (e.g.
my-style-class). - CONSTANT_CASE: Joins words with underscores in all uppercase (e.g.
MY_GLOBAL_CONSTANT). - Alternating Case: Alternates the case of letters throughout the text (e.g.
tExT cAsE cOnVeRtEr).
100% Local and Secure Processing
Your inputs are processed purely client-side using JavaScript. No information is sent to a backend server. This local-only design ensures that confidential business documents, proprietary source code, or personal drafts can be formatted securely without data leak vulnerabilities.