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Case Converter

Easily change the case of any text with this free Case Converter. Convert to uppercase, lowercase, title case, or sentence case in one click — perfect for writers, coders, editors, and students.

Text Case Transformation Tool

Input Fields
If enabled, the result will update automatically when you change any value.

Case Conversion Logic

Formula
$$\text{Converted Text} = \begin{cases} \text{upper}(x) & \text{for UPPERCASE} \\ \text{lower}(x) & \text{for lowercase} \\ \text{title}(x) & \text{for Title Case} \\ \text{sentence}(x) & \text{for Sentence case} \end{cases}$$

The input text is processed according to the selected case rule:

  • UPPERCASE: All letters capitalized
  • lowercase: All letters in lowercase
  • Title Case: Each word starts with a capital
  • Sentence case: First letter of each sentence capitalized


The Case Converter is ideal for quickly formatting any block of text. Whether you’re reformatting a blog title, fixing inconsistent capitalization, or preparing text for programming and documentation — this tool saves time. It supports large inputs and instantly applies the selected case style with optional copy/paste support.

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