About this tool
The Case Converter is a free online tool that transforms text between different letter cases in one click. It supports UPPERCASE, lowercase, Title Case, Sentence case - plus the technical cases developers use every day: camelCase, snake_case, kebab-case, PascalCase, and CONSTANT_CASE.
How it works
1
Paste your text
Type or paste text into the input. It can be a single word, a headline, a full paragraph, or a list of variable names.
2
Click your target case
Choose from UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case. The conversion is instant.
3
Copy the result
The converted text appears in a copyable block. One click copies it to your clipboard.
Frequently Asked Questions
What is the difference between Title Case and Sentence case? v
Title Case capitalizes the first letter of each major word. Sentence case capitalizes only the first word and proper nouns.
What is camelCase vs snake_case vs kebab-case? v
camelCase: myVariableName - JavaScript, Java. snake_case: my_variable_name - Python, Ruby. kebab-case: my-variable-name - URLs, CSS.
Does it handle special characters and emoji? v
For simple cases all characters are preserved. For developer cases the tool converts to ASCII and strips special characters.
Is my text sent to a server? v
No. Conversion happens entirely in your browser.
Does it work with non-Latin alphabets? v
UPPER, lower, Title, and Sentence work with any alphabet that has case distinction. Developer cases are ASCII-only.
Can I convert a whole document at once? v
Yes. Paste the entire document into the text area.