Free · No Sign-Up · 100% Private

Change Text Case
Instantly

Paste your text, click a button, done. Convert between UPPER CASE, lower case, Title Case, camelCase and 6 more — in one click.

CaseConverter Tool
✦ Live preview
0 Characters0 Words0 Sentences0 Lines
Sentence Case·UPPER CASE·lower case·Title Case·camelCase·PascalCase·snake_case·kebab-case·aLtErNaTiNg CaSe·iNVERSE cASE·Sentence Case·UPPER CASE·lower case·Title Case·camelCase·PascalCase·snake_case·kebab-case·aLtErNaTiNg CaSe·iNVERSE cASE·

How It Works

No sign-up. No complicated settings. Just paste, click, and copy. It really is that easy.

01

Paste Your Text

Copy any text from anywhere — an email, document, social media post, or just type it directly into the box.

02

Click a Case Button

Choose from 10 different text styles. Each button shows exactly what it does — no guesswork needed.

03

Copy & Use Instantly

Your text is transformed instantly. Hit 'Copy Text' and paste it wherever you need it. Done!

What Does Each Button Do?

Not sure which case to use? Here's a plain-English guide to all 10 text transformations — with before & after examples.

Sentence Case

Before

THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.

After

The quick brown fox jumps over the lazy dog.

Best for: Emails, articles, normal writing
UPPER CASE

Before

the quick brown fox

After

THE QUICK BROWN FOX

Best for: Headlines, emphasis, shouting
lower case

Before

THE QUICK BROWN FOX

After

the quick brown fox

Best for: Usernames, casual social posts
Title Case

Before

the quick brown fox jumps

After

The Quick Brown Fox Jumps

Best for: Book titles, headings, names
camelCase

Before

my variable name

After

myVariableName

Best for: JavaScript variables, JSON keys
snake_case

Before

my variable name

After

my_variable_name

Best for: Python, database column names

Built for Real People

Not just another text tool — CaseConverter is designed from the ground up to be fast, private, and genuinely easy to use.

Instant Conversion

Text transforms the moment you click — no loading, no waiting, no page refresh. Lightning fast.

Works on Any Device

Phone, tablet, laptop, or desktop — CaseConverter works perfectly on every screen size.

100% Private

Your text never leaves your device. Everything is processed in your browser — zero servers, zero tracking.

Download as File

Need to save your converted text? Download it as a .txt file with one click.

Live Word Counter

Always know your character count, word count, sentence count, and line count in real time.

No Sign-Up Required

Just open the page and start converting. No account, no email, no credit card — ever.

100M+
Text Conversions
10
Case Styles
0ms
Processing Delay
Free
Forever

Frequently Asked

Everything you need to know about using CaseConverter.

A text case converter is a tool that changes the capitalization style of your text. For example, it can turn 'hello world' into 'HELLO WORLD', 'Hello World', or 'hello-world' — instantly, without any typing.