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Case Converter

Change text to UPPER, lower, Title or Sentence case, or to camelCase, snake_case and kebab-case for code.

About the Case Converter

Paste text and choose a case: Title Case, Sentence case, UPPER, lower, camelCase, snake_case and more. Copy the result with one click.

Title case capitalises the main words of a heading; style guides differ on short words, and this follows the common rule of keeping articles, short conjunctions and short prepositions lower case. Sentence case capitalises only the first word of each sentence (add capitals back to names). Programmers use camelCase, PascalCase, snake_case and kebab-case to name things.

The formula

Each mode applies a fixed rule to every word or letter

Worked example

“the quick brown fox jumps over the lazy dog” in title case

  1. Main words capitalised; “over” and “the” in the middle stay lower case
  2. “The Quick Brown Fox Jumps Over the Lazy Dog”

Questions people ask

Which case should headings use?

Many publishers prefer sentence case for readability; follow your style guide.

Will it fix names and acronyms?

No, check proper nouns and acronyms after converting.