Rollphy

Convert UPPERCASE to lowercase

Turn ALL CAPS text into lowercase instantly — free, as you type, nothing uploaded. Fix caps-lock accidents, shouting emails and shouty headlines.

Converted as you type — nothing leaves your device.

Paste the shouted text, get it back quiet. This converter turns every capital letter into its lowercase form while leaving numbers, punctuation and line breaks exactly where they are — a caps-lock paragraph, an all-caps email or a shouty CSV header all come back readable in the time it takes to paste them.

The conversion happens as you type with no button to press, and it runs entirely in your browser: the text is never uploaded, so it is safe for anything confidential. If you overshot and wanted the opposite direction, the same engine's lowercase-to-uppercase page flips small letters to caps, and the full case converter offers every other style including Title Case and Sentence case.

Sentence case is often the better repair for a whole caps-lock passage — it lowercases the text and then re-capitalises the first letter of each sentence, so "HELP ME FIX THIS. IT IS ALL CAPS" becomes "Help me fix this. It is all caps" instead of "help me fix this. it is all caps". Pick it from the style menu when the text has real sentences in it.

Frequently asked questions

Does it change numbers or punctuation?
No — only letters change case. Digits, spaces, punctuation, emoji and line breaks all stay exactly as they were, so URLs and file paths only lose the casing of their letters.
Can I convert a whole document at once?
Yes. Paste as much as you like and the lowercase result appears as you type or paste. There is no length limit beyond what your browser can hold, and nothing is uploaded.
How do I keep sentence capitals instead of all-lowercase?
Switch the style menu to Sentence case. It lowercases everything and then re-capitalises the first letter after each period, question mark, exclamation point or line break.
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