Text accidentally typed with Caps Lock on, shouted headings or data exported in capitals is easier to read in lowercase. This tool converts it instantly and can also apply sentence case or title case.
How to use the Uppercase to Lowercase Converter
- Your text
- Convert to
Everything runs in your browser, so results appear instantly and nothing you type is sent to a server.
How it works
The text is processed letter by letter with your browser’s built-in Unicode case mapping. Title case keeps short words such as “of”, “and” and “the” in lowercase unless they start or end the title.
Formula
Each letter is mapped to its upper- or lower-case form using Unicode case rules, so accented letters (é → É) work too.Worked example
Inputs — Your text: TEXT TYPED WITH CAPS LOCK ON IS HARD TO READ.; Convert to: lowercase.
Results — Converted text = text typed with caps lock on is hard to read.; Characters = 45; Words = 10; Letters changed = 35.
Frequently asked questions
Does it work with accented letters?
Yes, letters such as é, ü and ñ are converted correctly.
What is sentence case?
Only the first letter of each sentence (and the word “I”) is capitalised.
Is my text stored?
No. The conversion happens in your browser.
What formula does the Uppercase to Lowercase Converter use?
Each letter is mapped to its upper- or lower-case form using Unicode case rules, so accented letters (é → É) work too.