Free Text Case Converter Online
Free Text Case Converter Online is a free online tool by US AI. Change text case instantly — convert UPPERCASE to lowercase, make titles in Title Case, or clean up text in Sentence case. It runs completely in your browser — no signup, no download, works on mobile and desktop.
📖 How to use
- Paste your text and click UPPERCASE, lowercase, Title Case or Sentence case to convert it instantly.
- Open the tool with the button above — it loads instantly.
- Your work stays on your device; nothing is uploaded anywhere.
✨ Why use this tool?
US AI's free text case converter online is fast, private and 100% free forever. Bookmark this page and share it with anyone who needs it.
❓ Frequently asked questions
How do I convert UPPERCASE to lowercase?
Paste your text and press the lowercase button — the whole text converts instantly, right in your browser.
What is Title Case?
Title Case capitalizes the first letter of every word — handy for headings and article titles.
What is Sentence case?
Sentence case capitalizes the first letter of each sentence and lowercases the rest — ideal for cleaning up pasted text.
Is the text case converter free and private?
Yes. It's 100% free, needs no signup, and everything runs on your device — no text is ever uploaded.
Does it work on mobile?
Yes, it works on any phone, tablet or desktop browser with no app or download needed.