Convert Case
Paste or type your text, then pick a case. Change between UPPER CASE, lower case, Sentence case, Title Case and more — instantly, right in your browser.
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About this case converter
Convert Case is a free online tool for changing the letter case of any text. Paste your content, choose a transformation and copy the result — nothing is uploaded, everything runs locally in your browser.
UPPER CASE
Converts every letter to a capital, e.g. HELLO WORLD. Useful for headings and emphasis.
lower case
Converts every letter to small, e.g. hello world. Handy for normalising text.
Sentence case
Capitalises the first letter of each sentence and lowercases the rest, e.g. Hello world. How are you?
Title Case
Capitalises the first letter of every word, e.g. Hello World. Great for titles and headlines.
iNVERSE & aLtErNaTiNg case
Inverse swaps the case of each character; alternating case flips between lower and upper letter by letter — fun for stylised text.
This tool runs entirely in your browser — your text is never sent anywhere.