Convert Text Between Cases: camelCase, snake_case, Title Case, and More

Switching between uppercase, lowercase, title case, and programming naming conventions by hand is tedious and error-prone. A case converter does it in one click.

Common text cases

Everyday cases

• UPPERCASE — All capital letters. Used for acronyms, headings, emphasis
• lowercase — All small letters. Standard for body text, URLs
• Title Case — First Letter Of Each Word Capitalized. Used for titles, headings
• Sentence case — First letter of each sentence capitalized. Standard for body text

Programming cases

• camelCase — First word lowercase, subsequent words capitalized. Used in JavaScript, Java variables
• PascalCase — Every word capitalized, no separators. Used for class names
• snake_case — Words separated by underscores, all lowercase. Used in Python, Ruby, database columns
• kebab-case — Words separated by hyphens, all lowercase. Used in URLs, CSS class names
• CONSTANT_CASE — Snake case but uppercase. Used for constants and environment variables

When you need case conversion

• Formatting headings — Convert body text to Title Case for section headers
• Cleaning data — Normalize inconsistent capitalization in spreadsheets
• Code refactoring — Convert variable names between naming conventions
• Content migration — Adjust text formatting when moving between platforms
• SEO optimization — Ensure consistent title formatting

Naming conventions in programming

Following the right convention makes your code more readable and consistent with the ecosystem. A case converter handles the transformation without manual editing.

Tips

• Don’t title-case small words — Words like “a”, “an”, “the”, “in”, “on”, “at” are typically lowercase in titles (unless they’re the first word)
• Acronyms in camelCase — htmlParser is preferred over HTMLParser in most style guides
• Be consistent — Pick one convention and stick with it across your project