PascalCase Converter

Turn any phrase into PascalCase — free, instant, runs in your browser.

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What is PascalCase?

PascalCase joins words with no separators and capitalizes the first letter of every word, including the first one. It is also known as UpperCamelCase and takes its name from the naming conventions popularized by the Pascal programming language.

PascalCase examples

hello world example → HelloWorldExample
user profile card → UserProfileCard
http request handler → HttpRequestHandler

Where is PascalCase used?

PascalCase is the convention for classes, constructors and types: React components (UserProfileCard), TypeScript interfaces and type aliases, Java and C# class names, and .NET method names. The leading capital signals "this is a type or component", which keeps it visually distinct from camelCase variables and functions.

PascalCase vs camelCase

The two styles are identical except for the first letter: camelCase starts lowercase (userName), PascalCase starts uppercase (UserName). Many teams mix them deliberately — PascalCase for types and components, camelCase for everything else.

Common mistakes when converting case

Expecting editorial Title Case. The Title Case button capitalizes every word, including short ones: "the lord of the rings" becomes "The Lord Of The Rings". Style guides like AP and Chicago keep words such as "of", "the" and "and" lowercase, so adjust those by hand afterward.
Losing apostrophes. Word-based styles (Title Case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE) split on anything that is not a letter or digit, so "don't stop" turns into "Don T Stop" or "don_t_stop". Remove or restore apostrophes after converting.
Sentence case and proper nouns. Sentence case lowercases the whole text, then capitalizes only the first letter of each sentence, so "i visited NASA in june. it was fun." becomes "I visited nasa in june. It was fun." Re-capitalize names and acronyms yourself.

Pro tips

Rescue a Caps Lock accident with InVeRsE CaSe. Text typed as "hELLO wORLD" while Caps Lock inverted your Shift key flips back to "Hello World" in one click.
Acronyms split cleanly. "HTMLParser" converts to "htmlParser" with camelCase and "html_parser" with snake_case, because the word splitter detects where an acronym ends and the next word begins.
Only letters alternate. In aLtErNaTiNg CaSe, digits, spaces and punctuation stay in place and do not break the pattern: "abc 123 def" becomes "aBc 123 dEf".

Frequently asked questions

What is the difference between PascalCase and camelCase?

Only the first letter: PascalCase capitalizes it (UserName), camelCase leaves it lowercase (userName). PascalCase marks classes, types and components; camelCase marks variables and functions.

Why is it called PascalCase?

It is named after the Pascal programming language, whose community capitalized identifiers this way. The style was later adopted by the .NET naming guidelines, which popularized the term. It is also called UpperCamelCase.

How are acronyms handled in PascalCase?

Acronyms are treated as ordinary words: 'JSON data parser' becomes 'JsonDataParser'. If a style guide requires the acronym to stay fully capitalized, adjust it manually after converting.

Other case converters

Or switch between every style in one place on the Case Converter homepage.