Case Converter

About

How to use

1. Paste or type your text into the box.
2. Choose a format: UPPERCASE, lowercase, Title, Sentence, Capitalized or aLtErNaTiNg.
3. The result is applied instantly — copy it with one click.

Examples & case types

Quick examples of how the same text looks in each format:

UPPERCASE

“hello world” → “HELLO WORLD”. For emphasis in headings and alerts.

lowercase

“HELLO WORLD” → “hello world”. Fixes text typed with Caps Lock left on.

Title Case

“a blog post title” → “A Blog Post Title”. Capitalizes the first letter of each word.

Sentence case

“hello. how are you?” → “Hello. How are you?”. Only sentence starts are capitalized.

aLtErNaTiNg

“mocking text” → “mOcKiNg TeXt”. A playful style popular on social media.

Frequently Asked Questions

What is the difference between title case and sentence case?

Title case capitalizes the first letter of every word ('Hello World'). Sentence case capitalizes only the first letter of each sentence ('Hello world').

Can I undo a case change?

Yes. If you applied the wrong format, just click another button — the conversion always runs on the current text in the box. It is also a good idea to keep a copy before pasting.