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Text Case Converter
Switch any block of text between standard cases (UPPER, lower, Title, Sentence) and developer cases (camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE).
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Standard cases
Developer cases
Cleanup
The cases, in plain English
- UPPERCASE — every letter is uppercase. Loud, great for warnings or short labels.
- lowercase — every letter is lowercase. Used in URLs, file names, and a softer, modern visual tone.
- Title Case — capitalize the major words; keep articles and short prepositions lowercase. The convention used by most book and article headlines.
- Sentence case — capitalize only the first letter of each sentence. The default for body copy and increasingly for product UI labels.
- camelCase — common in JavaScript, Java, and Swift identifiers.
- PascalCase — capitalized variant of camelCase used for class and component names.
- snake_case — Python, Ruby, and SQL favorite for variables and column names.
- kebab-case — the standard for URLs, CSS class names, and CLI flags.
- CONSTANT_CASE — used for environment variables and language-level constants.