Case Converter

Convert text between uppercase, lowercase, title case, sentence case, and more. Real-time, instant results.

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Input Text 0 chars

UPPERCASE
lowercase
Title Case
Sentence case
Capitalized Case
tOGGLE cASE
aLtErNaTiNg cAsE
camelCase
snake_case
kebab-case
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How to Use This Case Converter

  1. Type or paste your text — Enter any text in the input box. No character limit.
  2. View all transformations — 10 transformations at once: UPPERCASE, lowercase, Title Case, Sentence case, Capitalized Case, tOGGLE cASE, aLtErNaTiNg cAsE, camelCase, snake_case, and kebab-case.
  3. Copy the result you need — Each transformation has its own Copy button. Click to copy that specific version to your clipboard.
  4. Clear and start over — Click Clear to reset the input and all outputs.

Why Use This Case Converter?

All 10 transformations at once

Most case converters make you pick one transformation at a time. This tool shows all 10 simultaneously — including camelCase, snake_case, and kebab-case for code formatting. Compare them side by side and copy the one you need.

Complete privacy

All text processing happens in your browser. Your text is never uploaded to any server, logged, or stored. Safe for sensitive documents, passwords, or proprietary content.

Real-time updates

As you type or paste, all results update instantly. No clicking, no page reloads. See exactly how each transformation looks as you edit your text.

Unicode-aware

Handles accented characters correctly: é → É, ñ → Ñ, ü → Ü. Works with all Latin-script languages, not just English.

Frequently Asked Questions

What is the difference between Title Case and Capitalized Case?

Title Case capitalizes the first letter of each word while preserving the rest as-is: "hello WORLD" → "Hello WORLD". Capitalized Case (also called Proper Case) capitalizes the first letter of each word and lowercases the rest: "hello WORLD" → "Hello World". For already-properly-cased text, the results are identical.

How does Sentence case work?

Sentence case capitalizes the first letter of each sentence and lowercases everything else. Sentence boundaries are detected at ., !, and ? followed by a space. The tool also handles the very start of the text as a sentence boundary.

What is alternating case used for?

Alternating case (also called sponge case or mocking case) alternates between uppercase and lowercase letters within words. It is commonly used in meme culture to convey sarcasm or mockery in text. Each letter alternates regardless of word boundaries.

Is this tool free?

Yes, completely free. No signup, no download, no limits on how much text you can convert.

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