Case Converter
Convert text between UPPERCASE, lowercase, Sentence case, Title Case, aLtErNaTiNg and more — six modes, in your browser.
Type or paste text and get seven case conversions at once — UPPERCASE, lowercase, Title Case, Sentence case, aLtErNaTiNg, InVeRsE, and tOGGLE — each in its own copyable box.Title Case here keeps small words (a, an, the, and, but, or, for, nor, on, at, to, from, by, with) lowercase unless they start the text — the Chicago Manual of Style convention most editors expect.
UPPERCASE
lowercase
Title Case
Sentence case
camelCase
PascalCase
snake_case
kebab-case
CONSTANT_CASE
aLtErNaTiNg cAsE
iNVERSE cASE
tOGGLE cASE
Frequently asked questions
What is Title Case exactly?
Every word starts with a capital letter except small words (articles, conjunctions, short prepositions) — unless they are the first word. "the lord of the rings" becomes "The Lord of the Rings".
What is Sentence case?
Only the first letter of each sentence is capitalized, like this sentence. Headlines and subheadings in sentence case are the AP style default.
Does it handle accented characters?
Yes. Conversions use Unicode-aware lower/upper casing, so É, ñ, and ß behave correctly — including the Turkish dotted İ and German ß to SS in uppercase.
What is tOGGLE cASE?
Every letter flips its current case: capitals become lowercase and vice versa. It is the fastest way to fix text typed with Caps Lock on.