Case Converter
Convert text case online for free — UPPERCASE, lowercase, Title Case, Sentence case, aLtErNaTiNg case, and more. No signup, nothing uploaded to a server.
Your files are processed locally in your browser and are not uploaded to our servers.
How to use Case Converter
- 1
Paste or type your text into the box.
- 2
Click any case button — UPPERCASE, lowercase, Title Case, Sentence case, Capitalize Each Word, aLtErNaTiNg CaSe, or iNVERSE cASE.
- 3
The text updates immediately; click a different button any time to try another case.
Common uses
- Fixing text that was accidentally typed with Caps Lock stuck on
- Formatting a heading or title consistently before publishing
- Converting a list of names or labels to Title Case for a document
Supported formats and limitations
Accepts text, up to one file at a time.
- "Title Case" follows standard style-guide rules — short connector words (a, an, the, and, of, in, ...) stay lowercase unless they're the first or last word of a line. "Capitalize Each Word" is the simpler alternative that capitalizes every word without that exception.
- Line breaks, multiple spaces, and punctuation are never touched by a case change — only letter casing changes.
Frequently asked questions
No. Conversion happens entirely in your browser.
Title Case follows standard style rules, keeping short words like "a," "the," and "of" lowercase unless they start or end a line. Capitalize Each Word simply capitalizes every single word, no exceptions.
No — case conversion only changes letter case; every line break and space stays exactly where it was.
Yes — case conversion uses locale-aware uppercase/lowercase rules, which correctly handle Vietnamese diacritics.
Yes — use "Download TXT" to save the converted text as a file, or Copy to paste it elsewhere.