Everything runs in your browser. Nothing you paste is uploaded or stored.
Which case should you use
- UPPERCASE — shouting, acronyms, or short labels. Hard to read in long runs.
- lowercase — stripping formatting back before you re-case, or for a deliberately casual tone.
- Title Case — headings and titles. Every word starts with a capital.
- Sentence case — ordinary prose. Only the first letter of each sentence is capitalised.
- camelCase — variables and function names in JavaScript, Java and similar languages.
- PascalCase — class and component names in most languages.
- snake_case — Python variables, database columns, environment names.
- kebab-case — URLs, CSS class names, file names.
- aLtErNaTiNg — the mocking-tone meme format. It has exactly one use, and you know it when you need it.
Common questions
What is the difference between Title Case and Sentence case?
Title Case capitalises the first letter of every word — good for headings. Sentence case capitalises only the first letter of each sentence, leaving the rest lowercase — which is how ordinary prose is written.
What are camelCase, PascalCase, snake_case and kebab-case for?
They are naming conventions used in code. camelCase and PascalCase are common for variables and classes, snake_case is common in Python and database columns, and kebab-case is used in URLs, CSS class names and file names.
Is my text sent anywhere?
No. Every conversion runs in your browser. Nothing is uploaded, logged or stored, and the text disappears when you close the page.