Uppercase and lowercase converter
Uppercase, lowercase, title case, camelCase and more.
Runs in your browser
Output
Type some text to see the conversion.
What it does: Uppercase and lowercase converter
Change the capitalization of any text in one click — from fixing a paragraph typed with Caps Lock on to preparing variable names for code.
The conversion follows the chosen language's rules (such as the Turkish dotted i) and keeps accents and special letters intact.
How to use it
- Paste or type the text.
- Choose the target style; each one comes with a short explanation.
- Copy the result or use it as new input to chain conversions.
Examples
Text typed in caps
“HELLO, HOW ARE YOU? SEE YOU TOMORROW.” in sentence case → “Hello, how are you? See you tomorrow.”
Variable name
“total price with tax” in camelCase → “totalPriceWithTax”; in snake_case → “total_price_with_tax”.
Limits, formulas and assumptions
- Title Case follows a common English headline style; style guides (AP, Chicago, APA) differ on some short words, so review important titles.
- Programming formats remove punctuation and split words at case changes (“myVariable” → “my variable”).
- Acronyms are converted like the rest of the text; check them if they must stay in capitals.
Frequently asked questions
What's the difference between Title Case and Capitalize Every Word?
Title Case keeps short words like “of”, “the” and “and” in lowercase except at the start; Capitalize Every Word capitalizes them all.
Are accents preserved?
Yes. Accented letters convert correctly in both directions.
Does it work with multiple lines?
Yes. In programming formats each line is converted separately.
Related tools
Remove extra spacesClean up double spaces, tabs and blank lines. Word counterCount words and characters and estimate reading time. URL slug generatorTurn titles into clean URLs without accents or symbols. Image compressorReduce image file size right in your browser. Image resizerChange pixel dimensions while keeping the aspect ratio. PNG, JPG and WebP converterChange image formats without uploading them.