Text
Case Converter
UPPERCASE, lowercase, Title Case, Sentence case, camelCase, and snake_case — all at once, live.
Your Text
UPPERCASE
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lowercase
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Title Case
Result appears here…
Sentence case
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camelCase
Result appears here…
snake_case
Result appears here…
Type or paste text once and get all six common case styles at the same time, instead of clicking through separate buttons for each. UPPERCASE, lowercase, Title Case, and Sentence case preserve your original punctuation and spacing, so they work on full sentences and paragraphs. camelCase and snake_case are built for identifiers — variable names, file names, config keys — so they split the text into words (detecting existing camelCase boundaries too) and rejoin them without spaces or punctuation. Every result updates live as you type, with a one-click copy button on each.
Related Tools
How to Use
- 1
Type or paste your text into the box.
- 2
All six case conversions — UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case — update live below.
- 3
Click Copy on whichever result you need.
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Click Clear to start over.
Frequently Asked Questions
What does Title Case do exactly?
Title Case capitalizes the first letter of every word and lowercases the rest — for example "the quick BROWN fox" becomes "The Quick Brown Fox". It does not apply style-guide exceptions for short words like "a" or "the".
How is Sentence case different from Title Case?
Sentence case only capitalizes the first letter of the whole text and the first letter after each sentence-ending punctuation mark (. ! ?) — everything else is lowercased. Title Case capitalizes the first letter of every single word.
What counts as a "word" for camelCase and snake_case?
Any run of letters and numbers separated by spaces, punctuation, hyphens, or underscores is treated as one word. If you paste in text that's already camelCase or PascalCase, the boundaries between lowercase and uppercase letters are also detected and split, so "myVariableName" converts correctly instead of being treated as one giant word.
Can I convert a whole paragraph, not just a variable name?
Yes — UPPERCASE, lowercase, Title Case, and Sentence case all work on full sentences and paragraphs, preserving the original punctuation and line breaks. camelCase and snake_case are meant for short phrases like variable or file names, since they strip punctuation and join everything into one continuous identifier.
Is my text uploaded anywhere?
No. All six conversions run locally in your browser as you type — nothing is ever sent to a server.