Capitalization Tools

Transform your text instantly

Choose a style below. Your text is processed entirely in your browser — nothing is uploaded.

UPPERCASE

HELLO WORLD

Convert all characters to uppercase letters.

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lowercase

hello world

Convert all characters to lowercase letters.

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Title Case

Hello World

Capitalize the first letter of each word.

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Sentence case

Hello world

Capitalize the first letter of each sentence.

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aLtErNaTiNg

hElLo WoRlD

Alternate between uppercase and lowercase.

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iNVERSE cASE

HELLO wORLD

Swap uppercase to lowercase and vice versa.

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Select a tool

Click any card above to begin

Click any card above to start converting your text.

Why Qonvertly

Built for speed, privacy & simplicity

🔒

Private by design

All text processing happens on your device. Nothing is sent to a server.

⚡

Instant results

No waiting, no loading screens. Convert as you type or with a single click.

✎

Six case styles

Uppercase, lowercase, title, sentence, alternating, and inverse case.

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Copy & download

Easily copy your converted text or download it as a .txt file.

How it works

Three simple steps

Pick a tool

Choose the capitalization style you need from the grid above.

Enter your text

Type or paste text into the workspace. It stays on your device.

Convert & copy

Click convert, then copy the result or download it as a text file.

FAQ

Frequently asked questions

Is my text uploaded to a server?

No. Qonvertly is a client-side application. All conversions run directly in your browser using JavaScript. Your text never leaves your device.

What is alternating case?

Alternating case switches between uppercase and lowercase letters for each character (e.g., “hElLo WoRlD”). It’s often used for stylistic or meme text.

What does inverse case do?

Inverse case (also called toggle case) swaps the case of every letter: uppercase becomes lowercase and vice versa. For example, “Hello World” becomes “hELLO wORLD”.

Can I use this on my phone?

Absolutely. The interface is fully responsive and works on mobile, tablet, and desktop browsers.

Is there a character limit?

There is no hard limit, but extremely large text (millions of characters) may be limited by your device’s memory. For typical use, performance is instant.

Qonvertly

🔒 Your text is processed locally — never uploaded.