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Case Converter
Switch any text between seven cases instantly - UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case. Everything stays in your browser. No sign-up, free.
Options
Input
0 words · 0 characters · 0 lines
Output
Runs 100% in your browser No length or usage limits Free, no sign-up
How to convert text case
Paste your text
Type or paste anything into the input pane - a headline, a variable name, a whole document.
Pick a case
Click one of the seven case buttons. The output updates instantly as you type or switch cases.
Copy the result
One click copies the converted text, or download it as a .txt file.
Case conversion questions, answered
Is my text sent to a server?
No. Everything runs in your browser - nothing you type or paste ever leaves your device. That matters for code, credentials, contracts and anything else you would not paste into a random website.
What is the difference between Title Case and Sentence case?
Title Case Capitalizes Every Word, the style used for headlines. Sentence case only capitalizes the first word of each sentence, like normal prose.
What are camelCase, snake_case and kebab-case for?
They are programming identifier styles: camelCase for JavaScript variables, snake_case for Python, kebab-case for CSS classes and URLs. The converter splits your words and joins them in the chosen style.
Does it handle accented characters?
Yes. Case mapping uses the browser's Unicode rules, so ą, ö, é and other letters convert correctly.