Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case.
Title Case capitalizes every major word (How to Write Good Code). Sentence case capitalizes only the first word and proper nouns (How to write good code). This tool does both.
JavaScript/Java/C#: camelCase for variables. Python/Ruby: snake_case. Files/URLs: kebab-case. SQL/environment vars: UPPER_SNAKE. CSS classes: kebab-case. Follow your language/project convention.
Yes, preserves Unicode characters. Accented characters are case-converted correctly (é → É). Emojis and symbols stay unchanged.
Paste any length text — the whole thing converts at once. For multi-file batch conversion, use a CLI tool or script. This tool handles single-text-blob conversion.