Browser-only
Generation and export both stay in the browser.
Case Converter
Convert text between uppercase, lowercase, title case, camelCase, PascalCase, snake_case, kebab-case, and more directly in the browser.
Transform text instantly as you type
Update the input or switch modes and the result updates immediately. This works well for headings, identifiers, file names, and URL-friendly text.
Quick formats
Converted text
Uppercase
Enter text to see the converted result.
Text stats
- Characters
- 0
- Characters without spaces
- 0
- Words
- 0
- Lines
- 0
Case Converter guide
The Case Converter helps you change letter casing and naming styles for text in the browser.
What is the Case Converter?
You can convert ordinary text into uppercase, lowercase, Title Case, camelCase, PascalCase, snake_case, UPPER_SNAKE_CASE, kebab-case, slug case, and more.
Common case formats and how to use them
| Format | Example | Primary use |
|---|---|---|
| Uppercase | HELLO WORLD | Emphasis and headings |
| Lowercase | hello world | Normalized text |
| Sentence case | Hello world. | Sentences and explanations |
| Capitalized Case | Hello World | Simple word-by-word capitalization |
| Title Case | How to Convert Text Case | Titles and headings |
| camelCase | helloWorld | JavaScript variable names |
| PascalCase | HelloWorld | Component, class, and type names |
| snake_case | hello_world | Python and databases |
| UPPER_SNAKE_CASE | HELLO_WORLD | Constants and environment variables |
| kebab-case | hello-world | URLs and CSS class names |
| Train-Case | Hello-World | Labels and readable identifiers |
| dot.case | hello.world | Config keys |
| path/case | hello/world | Paths and route-like strings |
| slug case | hello-world | URL slugs |
FAQ
Is my input sent to a server?
No. The conversion happens entirely in the browser.
Can I use it for code-oriented naming?
Yes. It supports developer-friendly formats like camelCase, PascalCase, snake_case, UPPER_SNAKE_CASE, kebab-case, dot.case, and path/case.
What is the difference between camelCase and PascalCase?
camelCase starts with a lowercase letter, for example userName. PascalCase starts with an uppercase letter, for example UserName.
What is the difference between snake_case and kebab-case?
snake_case uses underscores, for example user_name. kebab-case uses hyphens, for example user-name.
What is UPPER_SNAKE_CASE used for?
It is commonly used for constants and environment variables, for example DATABASE_URL.
Can it handle multi-line text?
Yes. The tool supports multi-line text. Sentence-oriented formats can preserve line breaks, while developer-oriented formats can normalize to a single identifier.
Does it support Japanese text?
Yes, it can accept and preserve Japanese text. Casing conversion mainly applies to alphabetic characters.
What is slug case?
Slug case is a URL-friendly format that usually uses lowercase letters and hyphens, such as how-to-convert-text-case.
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Safety
No upload
Your input is never sent to a server.
No storage
Reloading clears the input and output.