Case Converter Online
Convert text between uppercase, lowercase, camelCase, snake_case, and more.
Processed locally in your browserConvert text between different letter cases instantly with this free online tool.
No 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.
For a completely different kind of text encoding, check out the Morse Code Translator — it converts any text into dots and dashes.
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.