Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case and more.
How to use this tool
Paste your text
Type or paste any text into the box below — any length, any language with Latin script.
Pick a case
One click converts everything: upper, lower, title, sentence, alternating and more.
Copy it out
Hit copy and paste the result wherever you need it. Clear to start over.
Frequently asked questions
What's the difference between Title Case and Capitalize Each Word?
Title Case lowercases everything first, then capitalizes the first letter of each word. Capitalize Each Word only uppercases the first letter of each word and leaves the rest of your text exactly as you typed it.
How does Sentence case work?
Everything is lowercased, then the first letter after each period, exclamation mark or question mark is capitalized. Note that abbreviations like "e.g." can trigger extra capitals — give the result a quick glance.
What does aLtErNaTiNg case do?
It alternates upper and lower case letter by letter (aLtErNaTiNg LiKe ThIs). Punctuation and spaces are left untouched and don't reset the pattern.
Is my text uploaded anywhere?
No. Conversion happens entirely in your browser with JavaScript. Your text never leaves your device.
Is there a character limit?
The amount of input this tool can handle depends on available browser memory and the limits shown by the controls. Larger jobs can take longer or fail; try a smaller input if the page becomes slow.