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iyziTool

Case Converter

Switch your text between ten common capitalisation styles, from everyday Title Case to the naming conventions used in code. Conversion is instant and Unicode aware.

Result
Enter a value to see the result.

About this tool

Writers mostly need Title Case, Sentence case and UPPERCASE. Developers need the programming conventions: camelCase for JavaScript variables, PascalCase for classes and components, snake_case for Python and SQL, kebab-case for CSS and URLs, and CONSTANT_CASE for environment variables.

The converter splits on spaces, punctuation and existing camel-case boundaries, so `getUserName` and `get user name` produce the same result in every target style.

Frequently asked questions

What is the difference between Title Case and Sentence case?
Title Case capitalises the first letter of every word. Sentence case capitalises only the first letter of each sentence, which is the standard for body text and most headlines today.
When should I use camelCase versus PascalCase?
camelCase is conventional for variables and functions in JavaScript, Java and C#. PascalCase is used for classes, types and React components.
Why is kebab-case used in URLs and CSS?
Hyphens are valid in both contexts and are treated as word separators by search engines, while underscores are not always parsed the same way.
Does it work with accented and non-Latin text?
Yes. Word splitting uses Unicode letter and number classes, so accented, Turkish, Greek and Cyrillic text is handled correctly.
Can I convert code identifiers in bulk?
Yes — paste multiple lines and the whole block is converted at once, keeping line breaks intact.

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