Case Converter

Convert text between 12+ case styles instantly — uppercase, lowercase, title case, sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, path/case, and more.

Capitalize main words

Input Text

0 chars · 0 words · 1 lines

Output — Title Case

Type text above to see conversion

Try These

Case Reference

All letters capitalizedHELLO WORLD

All letters lowercasehello world

Capitalize main wordsHello World

First letter of sentencesHello world. How are you?

JS variables & functionshelloWorld

Class names & componentsHelloWorld

Python, Ruby, databaseshello_world

CSS classes, URL slugshello-world

Constants, env varsHELLO_WORLD

Object properties, packageshello.world

File pathshello/world

Common Uses

JScamelCase for variables, PascalCase for classes
PYsnake_case for variables, CONSTANT_CASE for constants
CSSkebab-case for class names and properties
URLkebab-case for slugs, lowercase for domains
DBsnake_case for table and column names
ENVCONSTANT_CASE for environment variables

Tips

1.Input can be any case — the tool auto-detects word boundaries.
2.Multi-line text is converted line by line.
3.Click any card in "All Conversions" to select that case and copy.
4.Use "Swap to Input" to chain multiple conversions.

Text Case Conventions and When to Use Them

Different text case styles serve specific purposes in writing, programming, and design. Understanding when to use each convention improves code readability, maintains consistency, and follows industry standards.

camelCase starts with a lowercase letter, with each subsequent word capitalized. It's the standard for JavaScript variables and functions, Java methods, and JSON keys. PascalCase (also called UpperCamelCase) capitalizes every word and is used for class names in most programming languages, React components, and TypeScript interfaces.

snake_case uses underscores between words, all lowercase. It's the convention for Python variables and functions, Ruby, database column names, and file naming in many systems. CONSTANT_CASE (SCREAMING_SNAKE_CASE) uses uppercase with underscores for constants and environment variables.

kebab-case uses hyphens between words and is the standard for CSS class names, URL slugs, HTML attributes, and npm package names. It's not valid as a variable name in most languages since hyphens are interpreted as minus operators.

Title Case capitalizes the first letter of each significant word (articles and prepositions are typically left lowercase) and is used for headlines, book titles, and proper nouns. Sentence case capitalizes only the first word and proper nouns, used in most body text and UI labels.

Text Case Conventions and When to Use Them