Case Converter

How this works & your privacy

🔒 Nothing you type, paste, or drop is uploaded, stored, or logged. Everything is computed in your browser and never leaves your device — close the tab and it is gone.

Simple cases (UPPER, lower, Title, Sentence) transform the text in place. Programmer cases (camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case) first split the text into word tokens — respecting spaces, punctuation, and camelCase boundaries — then rejoin them in the target style.

Limitations

• Title Case capitalises every word; it does not apply style-guide rules that lowercase short words (a, the, of).
• Programmer-case tokenisation keeps only letters and digits; other characters become word separators.
• Case mapping follows the browser's Unicode rules; locale-specific mappings (e.g. Turkish dotless ı) are not special-cased.

Standards & references

• Unicode case mapping ↗