Case Converter Online
Convert text between uppercase, lowercase, camelCase, snake_case, and more.
Processed locally in your browserNo text yet.
Select case format
Case format reference
UPPER CASE
HELLO WORLDlower case
hello worldTitle Case
Hello WorldSentence case
Hello worldcamelCase
helloWorldPascalCase
HelloWorldsnake_case
hello_worldkebab-case
hello-worldCONSTANT_CASE
HELLO_WORLDdot.case
hello.worldUnlock the full toolkit
Batch processing, no ads, higher limits, and API access.
How to Use
Convert text between different letter cases instantly with this free online tool.
- Paste or type your text into the input area.
- Click any case button to convert: UPPER CASE, lower case, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, or dot.case.
- The converted output appears instantly below.
- Click Copy to copy the result to your clipboard.
All processing happens in your browser — no data is sent to any server.
Features
- ✓10 case formats supported
- ✓Real-time conversion
- ✓One-click copy
- ✓Full Unicode support
- ✓No data leaves your browser
Frequently Asked Questions
- What is a case converter?
- A case converter is a tool that transforms text between different letter cases such as UPPER CASE, lower case, Title Case, camelCase, snake_case, and more. It saves time when reformatting text for code, titles, or documents.
- What is camelCase?
- camelCase is a naming convention where the first word is lowercase and each subsequent word starts with a capital letter, with no spaces or separators. For example, "hello world" becomes "helloWorld". It is widely used in JavaScript and TypeScript variable names.
- What is the difference between snake_case and kebab-case?
- snake_case separates words with underscores (hello_world) and is common in Python, Ruby, and database column names. kebab-case separates words with hyphens (hello-world) and is used in CSS class names, URLs, and file names.