About this case converter
Fixing capitalization by hand is slow and error-prone — a paragraph accidentally typed with Caps Lock on, a headline that needs Title Case, a list of labels that must become snake_case identifiers. This tool converts between ten formats instantly: UPPERCASE, lowercase, Title Case (with the small words like "and" and "of" kept lowercase, as style guides recommend), Sentence case, camelCase, PascalCase, snake_case, kebab-case, aLtErNaTiNg and iNVERSE.
How to use it
- Paste or type your text in the input box.
- Click the case you need — the result appears immediately below.
- Copy the result, download it, or feed it back into the input with Use result as input to chain conversions.
Which case is which?
- Title Case — headlines and titles: "The Art of Writing Well"
- Sentence case — normal prose: "The art of writing well"
- camelCase / PascalCase — variable and class names in JavaScript, Java and C#
- snake_case — Python variables, database columns
- kebab-case — URLs and CSS class names
Everything runs locally in your browser with no length limit.
Frequently asked questions
What's the difference between Title Case and Sentence case?
Title Case Capitalizes the Main Words of a Heading (keeping small words like 'and' or 'of' lowercase), while Sentence case only capitalizes the first word and proper nouns, like a normal sentence.
Does it handle camelCase and snake_case for programming?
Yes — camelCase, PascalCase, snake_case and kebab-case are all supported, which makes it handy for renaming variables, database columns and URL slugs.
Is there a length limit?
No. Conversion happens instantly in your browser regardless of how much text you paste.