Text Case Converter - UPPER, lower, Title, camelCase & More

Input text

Output — UPPER CASE

Output will appear here…

How to convert text case

Paste, click a format, copy. The whole thing takes three seconds.

01
Paste your text
Type or paste anything — a variable name, a headline, a block of copy. There's no length limit.
02
Click the format you want
UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case. The result appears instantly — no button to confirm.
03
Copy
One click copies the converted text. Paste it wherever you need it.

When you actually need this

Switching between coding conventions

Python uses snake_case, JavaScript uses camelCase, CSS uses kebab-case. When you're copying a variable name between languages, this saves the manual retyping.

Typed in caps lock by accident

WROTE AN ENTIRE PARAGRAPH IN CAPS? Paste it in and click Sentence case. Done in two seconds instead of retyping.

Consistent headline formatting

Title Case for article headlines, Sentence case for subheadings — paste each one and click. Faster than remembering which words to capitalise.

Database column and API field names

Human-readable field names like 'First Name' become first_name for SQL columns or firstName for JSON. Convert in one click.

CSS class names from component names

A React component called UserProfileCard becomes user-profile-card in CSS. Paste the component name, click kebab-case.

URL slug prep

Lowercase is the first step before generating a URL slug. Paste the title, click lowercase, then run it through the slug generator.

Frequently asked questions

Free, no account needed.

Nothing leaves your browser. All conversion runs locally in JavaScript.

camelCase starts lowercase: myVariableName. PascalCase starts uppercase: MyVariableName. JavaScript variables and functions typically use camelCase; classes and React components use PascalCase.

snake_case uses underscores (my_variable). kebab-case uses hyphens (my-variable). Python and SQL prefer snake_case. CSS, HTML attributes, and URLs use kebab-case.

Only the first letter of the first word is capitalised, plus proper nouns. Like a normal sentence. Useful for subheadings and UI labels.

Yes. The converter uses JavaScript's built-in toUpperCase() and toLowerCase() which handle accented characters and most Unicode scripts correctly.

Yes, on any modern phone or tablet browser.

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