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Case Converter

Quickly change the capitalization and format of your text.

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Convert Text Case Online

Use the HandyKitz Case Converter to quickly change text between uppercase, lowercase, title case, sentence case and common programming naming styles.

Available text formats

Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case or kebab-case.

Useful for writing and programming

Case conversion can help when formatting headings, cleaning up copied text, creating variable names or converting text into common programming naming conventions.

Private and browser-based

Your text is processed locally in your browser. It is not uploaded to HandyKitz.

Practical example

Choose a writing style for headings or a naming style for identifiers. Review the result when acronyms or language-specific capitalization need special treatment.

For hello world, uppercase gives HELLO WORLD, camelCase gives helloWorld, and snake_case gives hello_world.

Frequently asked questions

Does title case follow a publication's style guide?

No. It applies a mechanical capitalization rule rather than language-specific editorial rules; review articles, abbreviations and proper names yourself.

What happens to punctuation in programming-name modes?

The tool extracts letter and number groups, then joins them in the selected naming style. Punctuation is not preserved as literal text.

Can I reverse a case conversion to recover the original?

Not reliably: capitalization and some separators can be lost. Keep a copy of the original before replacing its contents with a converted version.