Text Case Converter — Online Tool

How to Use the Text Case Converter

1. Paste or type your text in the input area.
2. Click any case button to instantly convert: UPPER CASE, lower case, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, and more.
3. Click any result card to copy it to your clipboard with one click.
4. Use the live stats (character count, word count, line count) to track your text.

Why Text Case Conversion Matters

Every programming language has naming conventions, and inconsistency causes errors, code review rejections, and maintainability problems. JavaScript uses camelCase for variables and PascalCase for classes; Python uses snake_case for functions and CONSTANT_CASE for constants; CSS uses kebab-case for property names; SQL uses UPPER CASE for keywords. Converting between these cases manually — especially for multi-word identifiers — is tedious and error-prone.

For content professionals, title case rules vary by style guide (AP, Chicago, APA each have different rules about which words to capitalize), and sentence case is required for most web content. This converter handles all eleven common formats including the quirky alternating case and inverse case used in meme text, handling camelCase input splitting correctly so "getUserName" converts to "get_user_name" rather than "getusername".

Frequently Asked Questions

• What is the difference between camelCase and PascalCase?
  camelCase starts with a lowercase letter: getUser, firstName. PascalCase (also called UpperCamelCase) starts with an uppercase letter: GetUser, FirstName. PascalCase is standard for class names; camelCase for variables and functions.
• How does Title Case handle "small" words?
  Articles (a, an, the), short prepositions (in, on, at, for, to), and coordinating conjunctions (and, but, or) are not capitalized in title case unless they are the first or last word.
• What is CONSTANT_CASE?
  CONSTANT_CASE (also called SCREAMING_SNAKE_CASE) is all uppercase with underscores between words: MAX_RETRIES, API_BASE_URL. It is the standard convention for constants in Python, Java, and many other languages.