Free · offline · no sign-up
Case converter
Paste your text, then click the case you want: UPPERCASE, lowercase, Title Case, Sentence case, camelCase or snake_case. It converts in place, ready to copy.
Opens a fresh page with just this tool on it. Everything else is one click away.
How to use it
- 1 Paste your text into the input.
- 2 Click the case you want: UPPERCASE, lowercase, Title Case, Sentence case, camelCase or snake_case.
- 3 Copy the result with a single click.
Frequently asked questions
How do I change text from uppercase to lowercase?
Paste the uppercase text in and copy the lowercase result. Nothing is retyped and nothing is uploaded, because the conversion happens in your browser.
What is title case?
Title case capitalises the first letter of each significant word, the convention for headlines and titles. Sentence case capitalises only the first word.
Is my text sent anywhere?
No. The conversion runs locally in your browser, which makes it safe for text you would rather not paste into an online tool.
It is not just this one tool
The case converter is one block inside KontrolRoom, a modular workspace with notes, a calculating workbook, task boards and 20+ other utilities you can arrange on a single canvas. It all runs locally in your browser, works offline and costs nothing.
Explore the full workspace