What is the Case Converter?
The Devbin Case Converter transforms text between different capitalisation formats instantly. Whether you're renaming variables, converting column headers, or formatting display text, this tool handles it without any manual editing.
All processing happens in your browser — your text is never sent to any server.
How to Use It
1
Open the tool
Go to the Text & Strings page and scroll to the Case Converter section.
2
Paste your text
Type or paste the text you want to convert into the input area. Multi-line text works fine.
3
Pick a format
Click one of the format buttons — the conversion happens instantly as you type or click.
4
Copy the result
Click Copy to copy the converted text to your clipboard, ready to paste anywhere.
Supported Formats
| Format | Example output | Common use |
|---|---|---|
| UPPERCASE | HELLO WORLD | Constants, headings, emphasis |
| lowercase | hello world | Normalising input, CSS values |
| Title Case | Hello World | Headings, article titles, UI labels |
| camelCase | helloWorld | JavaScript variables, JSON keys |
| PascalCase | HelloWorld | Class names, React components |
| snake_case | hello_world | Python variables, database columns |
| kebab-case | hello-world | URLs, CSS classes, HTML attributes |
| SCREAMING_SNAKE | HELLO_WORLD | Environment variables, constants |
Pro Tips
Paste an entire column of database column names (like
first_name) and convert them all to camelCase for use in JavaScript in one shot.The tool preserves line breaks, so you can convert a list of words all at once.
Use kebab-case for CSS class names — it matches the convention used by Bootstrap, Tailwind and most CSS frameworks.
Use SCREAMING_SNAKE_CASE for environment variables in
.env files, where all keys must be uppercase.Frequently Asked Questions
What is camelCase?
camelCase capitalises every word except the first, with no spaces — for example:
myVariableName. It's the standard convention for JavaScript variables and function names.What's the difference between snake_case and kebab-case?
snake_case uses underscores (
my_variable), while kebab-case uses hyphens (my-variable). snake_case is standard in Python; kebab-case is common in URLs, CSS class names and CLI flags.Can I convert multiple lines at once?
Yes. The converter processes the entire textarea content, including multi-line text, and preserves line breaks in the output.
Is my text stored anywhere?
No. All conversion happens locally in your browser using JavaScript. Nothing is sent to any server.
Ready to convert?
Open the Case Converter now — paste your text and pick a format. No login, no limits.
Open Case Converter →