Text tool

Case Converter

Switch text between common writing and programming case styles.

Practical guide

How to use Case Converter

Case Converter reshapes words into writing styles and programming identifiers, including title, sentence, camel, Pascal, snake, kebab, constant, upper, and lower case.

Step by step

  1. Paste words, a heading, or an existing identifier.
  2. Choose the target case style.
  3. Review acronyms and proper names, then copy or reuse the result for another conversion.

Example

Inputuseful browser tools
ResultcamelCase: usefulBrowserTools · snake_case: useful_browser_tools

How it works

The converter detects transitions in camelCase, separates non-letter and non-number characters, normalizes words, and joins them according to the selected style.

Important limitations

  • Automatic title and sentence case cannot reliably identify every acronym or proper noun.
  • Punctuation is removed from programming-oriented case formats.

Frequently asked questions

Why did an acronym lose its capitalization?

Programming case conversion normalizes detected words before joining them; adjust domain-specific acronyms afterward.

Does it support non-English letters?

Word detection is Unicode-aware, though language-specific capitalization still depends on browser locale behavior.

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