ToolBooklyCaseShift

Free Online Case Converter — Transform Text Instantly

Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and PascalCase. 100% free, no signup, all processing in your browser.

Characters: 0·Words: 0·Lines: 1
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Instant Conversion

Transform text in real-time with a single click. No waiting, no loading.

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100% Private

Everything runs in your browser. Your text is never uploaded to any server. We collect zero data.

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Unicode Support

Works with English, Chinese, Japanese, Korean, accented characters, and more — full Unicode support.

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Mobile Friendly

Convert text on any device — desktop, tablet, or mobile. No app download needed.

How to Convert Text Case

1
Paste your text

Type or paste text into the input box above. You can paste multiple lines at once.

2
Click a conversion button

Choose from UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, or PascalCase.

3
Copy the result

Click the copy button to copy the converted text to your clipboard. Instant and easy.

Case Types Explained

🔤 UPPERCASE → lowercase🔤 lowercase → UPPERCASE🅰️ Title Case🅰️ Sentence case🐫 camelCase🐍 snake_case🔠 PascalCase🔄 Text Case Changer

Case Conversion Guides

Guide · 5 min

How to Convert Uppercase to Lowercase

5 methods compared — online tools, OS features, Word, programming, extensions.

Read guide →Guide · 4 min

Title Case Rules — When to Capitalize

Learn standard rules for Title Case, including which words to capitalize.

Read guide →Comparison · 6 min

camelCase vs snake_case

When to use each naming convention in programming and data formats.

Read guide →
View all guides →

Frequently Asked Questions

What is case conversion?
Case conversion changes the capitalization of text — for example, converting "HELLO" to "hello" (lowercase), "Hello" (Title Case), or "helloWorld" (camelCase).
Is CaseShift free?
Yes, CaseShift is completely free with no signup required. There are no hidden fees or usage limits.
Is my text safe?
Absolutely. All processing happens in your browser — your text is never uploaded to any server. We collect zero data.
What case types are supported?
CaseShift supports UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and PascalCase conversions.
Does it work on mobile?
Yes! CaseShift is fully responsive and works on any device with a web browser — desktop, tablet, or mobile.
Does it support non-English characters?
Yes! CaseShift supports Unicode, so it works with English, Chinese, Japanese, Korean, accented Latin characters, and more.

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