Text Case Converter

Convert your text to UPPERCASE, lowercase, Title Case, Sentence case, or alternating case with a single click.

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How to Convert Text Case Online

Text case conversion is useful for developers, writers, and marketers. Whether you need to fix accidentally all-caps text or convert variable names to snake_case for coding, this tool handles everything instantly.

  1. Paste your text in the Input Text box.
  2. Click any of the case buttons above (e.g. Title Case, snake_case).
  3. The result updates instantly in the right panel.
  4. Click Copy Result to copy or Download to save as a .txt file.