Aa Case Converter
🔒 No signup, no login — free to use. This tool runs entirely in your browser; your numbers and files never leave your device.
Paste your text and click a button to change its case instantly.
What Is Text Case?
UPPER CASE is used for headings and warnings, lower case for normal writing, Title Case for book and article titles, and Sentence case for ordinary sentences. Changing case by hand in a long document takes ages and creates mistakes. This tool changes the whole text in one click, so you can fix a document that was typed in the wrong case in seconds.
Read the full guide: How to Convert Text Case? Upper, Lower, Title and Sentence Case | ← Back to all tools