Case Converter
Convert text to different case styles instantly. Free and easy to use.
Case Converter
Convert text to different case styles
0 characters, 0 words
AA
UPPER CASEYour converted text will appear here
aa
lower caseYour converted text will appear here
Aa
Title CaseYour converted text will appear here
A.
Sentence caseYour converted text will appear here
aA
camelCaseYour converted text will appear here
AA
PascalCaseYour converted text will appear here
a_a
snake_caseYour converted text will appear here
a-a
kebab-caseYour converted text will appear here
aA
aLtErNaTe CaSeYour converted text will appear here
Instant Convert: All case styles update automatically as you type. Hover over any result and click the copy icon to copy to clipboard.
Text Case Styles: Reference Guide
1. Paste your text
Paste any text — a sentence, a variable name, a title, or an entire paragraph. The tool works on any amount of text and handles mixed case input.
2. Choose a case style
Select from UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, or kebab-case. The conversion happens instantly.
3. Copy the result
Click copy to get the converted text. Use it directly in your code, document, spreadsheet, or wherever you need it.
All Case Styles: Examples & When to Use
| Style | Example | Used In |
|---|---|---|
| UPPERCASE | HELLO WORLD | Headings, constants (MAX_SIZE), acronyms, emphasis |
| lowercase | hello world | CSS class names, email addresses, URL paths |
| Title Case | Hello World | Article titles, headings, book/movie names |
| Sentence case | Hello world | Standard prose, email subjects, UI labels |
| camelCase | helloWorld | JavaScript/TypeScript variables and functions |
| PascalCase | HelloWorld | JavaScript classes, React components, C# types |
| snake_case | hello_world | Python variables, database columns, file names |
| kebab-case | hello-world | CSS classes, URL slugs, HTML attributes, npm package names |
| CONSTANT_CASE | HELLO_WORLD | Environment variables, config constants in most languages |
Case Conventions by Programming Language
JavaScript / TypeScript
Variables & functions → camelCase. Classes → PascalCase. Constants → CONSTANT_CASE. CSS → kebab-case.
Python
Variables & functions → snake_case. Classes → PascalCase. Constants → CONSTANT_CASE. Modules → snake_case.
Java / C#
Variables & methods → camelCase. Classes & interfaces → PascalCase. Constants → CONSTANT_CASE.
Go
Exported identifiers → PascalCase. Unexported identifiers → camelCase. No snake_case or kebab-case in Go code.
CSS / Tailwind
Class names → kebab-case. CSS custom properties → --kebab-case. Tailwind utilities → kebab-case.
SQL / Databases
Column and table names → snake_case is the most widely adopted convention. Some DBs use PascalCase.
Common Use Cases for Text Case Conversion
Renaming variables
Convert a camelCase variable from JavaScript to snake_case when porting to Python, or vice versa.
Formatting headings
Convert a sentence or all-caps title to proper Title Case for blog posts, documents, or presentation slides.
Database migrations
Convert PascalCase model names to snake_case table column names for ORM field mapping.
URL slug generation
Convert "My Blog Post Title" to "my-blog-post-title" for clean, SEO-friendly URL slugs.
Fixing copy-paste
Fix text that was accidentally pasted in all caps or all lowercase from another source.
Code refactoring
Batch-convert a list of variable or function names to match a consistent naming convention.
Frequently Asked Questions
Common questions about Case Converter