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Case Converter

Convert text between lower, UPPER, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE. One click switches between formats.

ツール要約

このツールは構造化された入力を受け取り、サーバーへアップロードせずにブラウザで決定的な出力を返します。

ツール名
Case Converter
入力の目的
変換・検証・分析するソースコンテンツを入力してください。
出力の目的
コピー・再利用・デバッグに適した正規化された出力を受け取ります。
入力例
The quick brown fox
出力例
theQuickBrownFox
Ti

Active case

Title Case

Headlines and proper titles.

Natural languagePress 1–9 to switch

Input

Hello world example

Output

Hello World Example

Your text
0characters0words0lines
Try a sample

Pick a case

Each card previews how your text will look.

Natural language
Programming
ResultTitle Case
0characters0words

All conversions at once

Compare every case side-by-side. Click any row to copy.

Shortcuts1–9switch caseAtoggle gallery

ツールの紹介

Convert text between lower, UPPER, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE. One click switches between formats.

ツール概要

Whether you are renaming variables, normalizing copy for a style guide, or generating identifiers from a label, the Case Converter handles the most common cases without forcing you to remember individual conversion rules. Pick a target case from the pills, and the output updates immediately.

ユースケース

  • Use Case Converter when you need fast convert text between lower, upper, title, camelcase, snake_case, and more.
  • Handle text workflows directly in the browser with no install required.
  • Support SEO long-tail intent by covering quick checks, troubleshooting, and one-off conversions.

入力／出力の例

camelCase
入力の目的
The quick brown fox
出力の目的
theQuickBrownFox
snake_case
入力の目的
The quick brown fox
出力の目的
the_quick_brown_fox

よくある質問

How does Title Case decide which words to capitalize?+
It capitalizes every word except common short words (a, an, and, the, of, in, on, ...). The first word is always capitalized.
Does camelCase preserve numbers?+
Yes. Numbers are kept in place and treated as part of the word that contains them.

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