Uppercase to Lowercase
runs in your browserno sign-upfree
Convert UPPERCASE or mixed-case text to clean lowercase letters instantly.
About this tool
This tool converts text written in capital letters — or any mix of upper and lower case — into lowercase letters. It is useful for fixing text typed with Caps Lock on, cleaning up headings copied from documents, or preparing data such as email addresses and tags that should be lowercase.
How to use
- Paste or type your text into the Input box.
- The lowercase version appears instantly in the Output box.
- Copy the result or download it as a text file.
FAQ
Will numbers and punctuation change?
No. Only letters are converted. Numbers, spaces, punctuation and line breaks stay exactly as they are.
Is my text uploaded anywhere?
No. The conversion happens in your browser, so your text never leaves your device.
Does it work with accented and non-English letters?
Yes. Letters such as é, ü and ß are converted correctly, as are letters from other alphabets that have upper and lower case.
Can I switch to another conversion?
Yes. Use the buttons above the text to switch between lowercase, UPPERCASE, capitalizing the first letter of each line, Capitalize Each Word, Sentence case and the programming styles (camelCase, snake_case and more). Your text stays in place.