Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case and code styles like camelCase and snake_case. Everything happens in your browser: your text is never uploaded. Free, instant, no sign-up.
🔒 100% private, converted locally in your browser. Nothing is uploaded.
What each case is for
- UPPER / lower, emphasis, or normalising messy input.
- Title Case, headlines and headings.
- Sentence case, normal prose; fixes text typed in all caps.
- camelCase / PascalCase, variable and class names in code.
- snake_case / CONSTANT_CASE, variables and constants in many languages.
- kebab-case, URL slugs, CSS classes, file names.
Frequently asked questions
Is my text uploaded anywhere?
No. The conversion runs entirely in your browser. Your text is never sent to a server or stored, so it is safe for anything private and works offline.
What is the difference between Title Case and Sentence case?
Title Case capitalises the first letter of every word, used for headlines. Sentence case capitalises only the first letter of each sentence, like normal prose. Pick Title for headings, Sentence for body text.
What are camelCase, snake_case and kebab-case for?
They are naming styles used in code and data. camelCase joins words with capitals (myVariableName), snake_case joins with underscores (my_variable_name), and kebab-case joins with hyphens (my-variable-name), the last is also ideal for URL slugs.
Will it keep my punctuation and numbers?
The plain cases (UPPER, lower, Title, Sentence, inVERSE, aLtErNaTiNg) preserve all your characters. The code cases (camel, snake, kebab, CONSTANT) strip punctuation and join word and number tokens, since that is what those formats require.