Does it handle special characters?

Yes. Special characters and numbers are preserved — only letter casing is changed.

大文字・小文字変換

Convert any text between multiple case formats: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, and more. Useful for developers, writers, and anyone formatting text.

無料 · 制限なし · ブラウザで処理

使い方

1Paste your text in the input area.
2Click the desired case format button.
3View the converted text in the output.
4Copy the result to clipboard.

よくある質問

What case formats are supported?: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE.
Does it handle special characters?: Yes. Special characters and numbers are preserved — only letter casing is changed.