Case Converter

Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more.

The conversion runs entirely in your browser — nothing is uploaded.

How to use the Case Converter

1
Paste your text
Type or paste the text you want to reformat.
2
Pick a case
UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more.
3
Copy the result
Click Copy to put the converted text on your clipboard.

Related PDF tools

Character CounterCount characters, words, sentences and reading time as you type — nothing leaves your browser.Compare TextSpot every difference between two blocks of text, line by line.PDF Word CounterCount words, characters, sentences, and reading time in a PDF.Text to PDFTurn a plain .txt file or pasted text into a tidy PDF.

Case Converter — frequently asked questions

What is Title Case vs Capitalize Each Word?+

Capitalize Each Word capitalises every word. Title Case follows style rules — small words like 'and', 'the', 'of' stay lowercase unless they are first or last.

Does camelCase / snake_case strip punctuation?+

Yes — programmer cases remove spaces and punctuation and join the words, since that is how identifiers are written.

Can I undo a conversion?+

Your original text stays in the top box, so you can re-run a different case at any time.

Do you upload my files to a server?+

No — every tool here processes your files entirely on your device, and nothing is uploaded to a server. The only exception is the AI tools, which send the extracted text (not the file) to Claude to do their work.

Is there a file size limit?+

There's no artificial limit we impose, but since processing happens in your browser, very large files (500+ MB or 1,000+ pages) are limited by your device's memory rather than by us.