Don's Tools · Text & Writing · Case Converter

Case converter

Switch your text between UPPERCASE, lowercase, Title Case and more, right in your browser. Nothing is uploaded.

Choose a case
Private by design: the text is converted in your browser and is never uploaded. Pick a case and it updates instantly; keep typing and it stays in that case.
Case Converter is a free tool that changes the letter case of your text entirely in your browser, with nothing uploaded. Choose from UPPERCASE, lowercase, Title Case, Sentence case, Capitalized Words, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, alternating case and inverse case, and copy or download the result.

Frequently asked questions

Is my text uploaded anywhere?

No. The conversion happens entirely in your browser, and your text is never sent to a server.

What cases can it make?

UPPERCASE, lowercase, Title Case, Sentence case, Capitalized Words, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, aLtErNaTiNg and InVeRsE cAsE.

What is the difference between Title Case and Sentence case?

Title Case capitalizes the first letter of every word, like a heading. Sentence case capitalizes only the first letter of each sentence, like normal prose.

What are camelCase, snake_case and kebab-case for?

They are naming styles used in programming. camelCase and PascalCase join words with capitals, snake_case joins with underscores, kebab-case joins with hyphens, and CONSTANT_CASE is uppercase with underscores.

Will it keep my line breaks and punctuation?

UPPERCASE, lowercase, Title, Sentence, alternating and inverse keep your layout and punctuation. The programming styles (camel, snake, kebab and so on) strip punctuation because they join words into a single identifier.

Is there a limit on text length?

No fixed limit, though very long text is processed in your browser and may be slower on an older device.