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Case Converter

Switch text between UPPER, lower, Title and Sentence case, or camelCase, snake_case and kebab-case.

Processed in your browser — files never leave your device

0 words · 0 characters · 0 lines

Convert to

How to change text case

  1. Type or paste your text.
  2. Pick a style. The result updates instantly.
  3. Copy the result.

Which case to use

StyleExampleTypical use
Title CaseSmall Tools Big PawsHeadings, product names
Sentence caseSmall tools big pawsButtons, body text, UI labels
camelCasesmallToolsBigPawsJavaScript and Java variables
snake_casesmall_tools_big_pawsPython, database columns
kebab-casesmall-tools-big-pawsURLs, CSS classes, file names
CONSTANT_CASESMALL_TOOLS_BIG_PAWSConstants, environment variables

Code styles also re-split existing identifiers: myHTTPServer becomes my_http_server in snake_case.

Questions and answers

Does it work with accented letters and other alphabets?
Yes. Upper, lower, title and sentence case handle accented Latin letters, Greek, Cyrillic and more.
What does “Plain ASCII” do?
For code styles like camelCase or kebab-case it removes accents, so “Crème brûlée” becomes creme-brulee — safe for URLs, file names and variables.
Is my text stored?
No. Conversion happens in your browser as you type. Nothing is sent or saved.

Updated November 13, 2026