Case Converter
Free online case converter. Instantly change text to UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case and more — all shown at once, copy any with one click.
🔒 All conversions happen in your browser — your text is never uploaded.
Free Case Converter
This free online case converter instantly changes your text between every common case — UPPERCASE, lowercase, Title Case, Sentence case, and developer formats like camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE. Every version is shown at once and you can copy any of them with one click. It’s free, instant and runs entirely in your browser.
How to use the case converter
- Type or paste your text into the box on the left (or click Load sample).
- All ten case versions appear instantly on the right, updating as you type.
- Click Copy next to any case to copy just that version.
- Or click Copy all results to copy every conversion at once.
Which case should you use?
Different cases suit different jobs. Title Case and Sentence case are for headings and normal writing. UPPERCASE adds emphasis, while lowercase is great for tags, hashtags and URLs. Developers use camelCase and PascalCase for variables and class names, snake_case and CONSTANT_CASE in many programming languages and config files, and kebab-case for URLs, CSS classes and file names.
Converting by hand is slow and error-prone, especially for long lists or switching a variable name between
styles. This tool does it accurately in a click — including smart splitting, so a word like
myVariableName is correctly broken into my, variable and name
before being reformatted.
Frequently asked questions
Is this case converter free and private?
What is the difference between camelCase and PascalCase?
myVariableName) while PascalCase capitalises the first letter too
(MyVariableName). camelCase is common for variables; PascalCase for class and component names.What is snake_case vs kebab-case?
user_first_name) and is
common in Python, databases and config files. kebab-case joins lowercase words with hyphens
(user-first-name) and is used for URLs, CSS classes and file names.Can it convert an existing camelCase name to another case?
myVariableName can be turned into my_variable_name, my-variable-name or
any other case correctly.