Case Converter
Paste your text and switch it between Sentence case, Title Case, UPPER CASE, lower case, Capitalized Case, and more. Live word and character counts included. Nothing leaves your browser.
The case styles explained
Sentence case capitalizes the first letter of each sentence and lowercases the rest — the everyday style for paragraphs and emails. Title Case capitalizes the important words and keeps short joining words (a, the, of, and) lowercase, which is how headlines and article titles are written.
Capitalized Case simply uppercases the first letter of every word. UPPER CASE and lower case do exactly what they say. aLtErNaTiNg and InVeRsE case are playful styles for social posts and memes.
When to use which
Use Sentence case for body copy, Title Case for headings and blog titles, UPPER CASE for short labels or emphasis, and lower case when you want a calm, informal tone. The converter never sends your text anywhere — the transformation runs entirely on your device.