HesapHanem

Case Converter

How do I change text case?

Result

HELLO WORLD FROM CLAUDE
hello world from claude
Hello World From Claude
Hello world from claude
helloWorldFromClaude
hello_world_from_claude
hello-world-from-claude

How it is calculated

The tool takes your text and produces seven versions at once. UPPER and lower change every letter; Title Case lowercases all and then capitalises the first letter after a space, hyphen, slash or opening bracket; Sentence case capitalises only the very first character. For the code styles, the text is lowercased and split at every run of characters that is not a letter or digit; apostrophes are removed first, so "don't stop" becomes dontStop. The words are then joined as camelCase (first word lowercase, others capitalised), snake_case (underscores) and kebab-case (hyphens). Every alphabet is converted, including ç, ş, ü and é, and those letters stay inside the words in the code styles. On the Turkish page, i/İ and ı/I follow Turkish rules. Empty text gives no result.

Worked example

Input: Hello World from Claude. Upper: HELLO WORLD FROM CLAUDE. Lower: hello world from claude. Title: Hello World From Claude. Sentence: Hello world from claude. Splitting into the words hello, world, from, claude gives camelCase helloWorldFromClaude, snake_case hello_world_from_claude and kebab-case hello-world-from-claude.

Try this example →

Common mistakes

  • Using the English page for Turkish text. Accented letters convert, but the English page turns i into I; the Turkish page applies the Turkish i/İ and ı/I rules.
  • Expecting Title Case to leave small words alone. Every word is capitalised, so "the lord of the rings" becomes "The Lord Of The Rings".
  • Expecting Sentence case to capitalise every sentence. It capitalises only the first letter of the whole text.
  • Putting symbols in the text and expecting them to stay in the identifiers. In camel, snake and kebab output, punctuation is stripped and acts as a word break; only apostrophes join the word.
  • Pasting a variable that is already camelCase. The words are not detected inside it, so myVarName stays one word.

About this calculator

This tool reformats a block of text into different letter-casing conventions — UPPERCASE for emphasis, lowercase for uniformity, Title Case for headings, Sentence case for normal prose, and the programming-specific styles camelCase, snake_case and kebab-case used for variable and file naming.

Writers and editors use it to quickly fix text that was typed in the wrong case (like an accidentally caps-locked paragraph) or to format headlines consistently, while developers use the programming case styles to rename a variable or convert a spreadsheet column into a valid code identifier without retyping it by hand.

Was this helpful?

You can pick up to 3 reactions.

Comments (1)

  • Editorial team

    The camelCase, snake_case and kebab-case lines are handy for turning a plain phrase into a variable, file or URL name. Apostrophes join a word, so don't stop becomes dontStop, while other punctuation splits words. On the Turkish page the dotted and dotless i follow Turkish rules, which is worth checking on names. Which other naming styles, such as PascalCase or CONSTANT_CASE, would you like to see added?

Popular calculators

Loan Calculator

Monthly payment, total interest and full amortization schedule.

Percentage Calculator

Percent change, percent of, and ratio calculations.

Discount Calculator

Calculate final price, savings, and discount amount.

BMI Calculator

Body mass index from height and weight (metric or imperial).

Age Calculator

Compute your exact age in years, months and days from a birth date.

Compound Interest Calculator

Calculate the final amount and interest earned with compounding.

All Calculators