📝 Case Converter — UPPER, lower, Title & more

How it works

1. Type or paste your text into the input box — there is no practical length limit.
2. Click one of the operation buttons (UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE) to transform the text instantly.
3. The result appears in the output box; use the Copy button to copy it to your clipboard.
4. All processing happens locally in your browser — your text is never uploaded anywhere.

Examples

• Input "the quick brown fox jumps over the lazy dog" → click "UPPERCASE" → output "THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG".
• Input "THE QUICK BROWN FOX JUMPS HIGH" → click "lowercase" → output "the quick brown fox jumps high".
• Input "the quick brown fox jumps over the lazy dog" → click "Title Case" → output "The Quick Brown Fox Jumps Over The Lazy Dog".

Frequently asked questions