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Case Converter

Convert text to uppercase, lowercase, title case, camelCase, snake_case, and more—in your browser.

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Quick feedback helps us fix issues and improve Case Converter.

Changing text case

Choose uppercase, lowercase, title, sentence or a code-style case. The output is transformed text that you can copy.

Output behavior and limits

Title and sentence modes use simple patterns, not grammar rules. Code-style modes can remove non-ASCII characters; acronyms and proper names need review.

Try a heading such as 'API response guide'. Check that API keeps the capitalization you want before replacing headings across a document.

Before replacing your original

  • Processing runs locally in this browser; keep a copy of the source input.

Processing details

Runs in your browser. File handling policy

Implementation and guidance reviewed .

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