How to change capital letters to lowercase
It happens to everyone: you look up mid-sentence and discover an entire email typed in capitals because Caps Lock was on. Deleting and retyping is the slow way. The fast way is to paste the text here and click the “lower case” button — every letter flips to lowercase instantly while punctuation, numbers, and line breaks stay exactly where you put them.
The conversion preview updates as you type, so you can watch the result appear in real time. When it looks right, hit Copy to grab the clean text or Download to save it as a .txt file. Nothing is uploaded anywhere: the conversion runs inside your browser, which also makes it instant even for long documents.
When lowercase text is the right choice
Most professional writing prefers lowercase with capitals only at the start of sentences and for proper nouns. ALL CAPS reads as shouting in email and chat, breaks keyword matching in search tools, and looks careless in essays. Converting to lowercase is often step one of cleaning up pasted text — step two is usually fixing stray spaces or line breaks, which the related tools below handle in one click each.
If you only need the first letter of each sentence capitalized, switch to the Sentence case mode right inside this tool: it converts everything to lowercase and then capitalizes sentence starts for you.