Convert Text to UPPERCASE, Title Case or camelCase
Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more.
The conversion runs entirely in your browser — nothing is uploaded.
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About the case converter
Reformatting text between cases — turning a heading into Title Case, a variable name into camelCase or snake_case, or just fixing text that got stuck in ALL CAPS — is fiddly to do by hand for anything longer than a few words. This tool converts pasted text into UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and other common formats instantly.
Conversion runs on plain string operations in your browser's JavaScript the moment you paste or type — there's no processing delay, no file, and nothing sent anywhere. Just copy the result you need.
Supported files
No file — paste or type text directly. Produces the same text reformatted into your chosen case.
Is my file uploaded?
Yes, completely private. Text is converted entirely in your browser and is never sent anywhere.
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.
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.
Is there a free way to convert text to UPPERCASE or camelCase?+
Yes — this tool reformats the text entirely in your browser, free and with nothing uploaded.
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.
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