Free Text Case Converter Change Uppercase & Lowercase Instantly

uppercase & lowercase

Convert text to UPPERCASE, lowercase, Title Case, Sentence case, tOGGLE, or aLtErNaTiNg case — instantly in any language with a live highlight view showing every changed character.

Input
0 chars 0 words
UPPERCASE
Case Distribution — Output
Uppercase 0%
Lowercase 0%
Other 0%
A
a
0
Characters
0
Words
0
Uppercase
0
Lowercase
0
Chars changed
0
Lines
Features
5 Case Modes
UPPERCASE, lowercase, Title Case, Sentence case, Toggle case, and Alternating case — all with one click and live real-time conversion as you type.
Highlight View
Switch to Highlight mode to see every changed character highlighted — uppercase letters in red, lowercase in blue — so you can visually review every transformation.
Case Distribution Bar
A live proportional bar shows the balance between uppercase, lowercase, and other characters in the output — changes in real time with every keystroke.
All Languages + RTL/LTR
Unicode-aware — Arabic, English, Greek, Cyrillic, Hebrew, and all other scripts. RTL/LTR toggle for correct display direction per language.
Live Stats
Real-time: characters, words, uppercase count, lowercase count, changed chars, and line count — all update as you type or switch modes.
Instant — No Button
Conversion happens as you type. Switch modes by clicking the case cards — the result updates in milliseconds with no manual trigger needed.