Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, and developer cases — instantly, in your browser.
How to use the Case Converter
Type or paste text into the box, then tap a case — the text transforms instantly and that case stays highlighted. Tap Copy to grab the result or Download to save it as a .txt file. Everything runs in your browser; nothing is uploaded.
The cases
- UPPERCASE / lowercase — every letter one way.
- Title Case — each major word capitalized (short words like "of" and "the" stay lower).
- Sentence case — first letter of each sentence capitalized.
- Capitalize Each Word — every word's first letter, short words included.
- aLtErNaTiNg / InVeRsE — playful flips of each letter.
- Developer cases — camelCase, PascalCase, snake_case, kebab-case for variable names.
Find & Replace
Type a phrase to find and what to swap it with, then tap Replace All. Matching is case-sensitive and replaces every occurrence.