Case Converter

How to use

1. Paste or type your text into the Input box.
2. Choose the case you want from the Case selector.
3. Read the converted text in the Output box, updated as you type.
4. Click Copy to put the result on your clipboard, or Reset to start over.

Examples

• UPPERCASE: hello world becomes HELLO WORLD.
• snake_case: My Variable Name becomes my_variable_name.
• camelCase: first second third becomes firstSecondThird.

FAQs

What is the difference between Title Case and Sentence case?

Title Case capitalizes the first letter of every word, like My First Project. Sentence case capitalizes only the first letter of each sentence, like My first project.

Does the converter work on existing camelCase or snake_case text?

Yes. It splits words at spaces, underscores, hyphens, and capital letter boundaries, so myVariableName can be turned into my_variable_name or my-variable-name cleanly.

Is my text sent to a server?

No. All conversion happens locally in your browser using plain text functions. Nothing is uploaded or stored.

What happens to numbers and punctuation?

For UPPERCASE, lowercase, Title Case, and Sentence case, punctuation and spacing are kept. For camelCase, snake_case, and kebab-case, the text is broken into word and number tokens, so punctuation is dropped and digits are kept as separate groups.

Why is the camelCase output empty for some inputs?

camelCase, snake_case, and kebab-case need at least one letter or number to build a token. If the input has only punctuation or symbols, there are no tokens to join, so the output is blank.