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Tool Factory

Text & Lists

Case Swapper

Swap case with the selected arrangement. Enter the text, set the transformation rules, then copy the result.

Tool workspace

Your input stays in this browser.

Add the required input to continue.

Needs input

You can run the tool again after any change.

Your result appears here

Swap case with the selected arrangement. Enter the text, set the transformation rules, then copy the result.

This tool runs open-source code from CyberChef by GCHQ (Apache License 2.0). See open-source credits.

Case Swapper changes uppercase letters to lowercase and lowercase letters to uppercase.

hELLO wORLD Processing runs in the browser.

Instructions

  1. Provide text or data for this tool.
  2. Enter the text whose letter case should switch.
  3. Check symbols and digits because they remain unchanged.
  4. Apply the output only where case swapping is intended.

Example

Input: Hello World

Settings: Case Swapper: Run with the operation's empty settings panel.

Result: hELLO wORLD

Limits

  • Case Swapper: Applying the operation twice can restore case only for supported letters.
  • Case Swapper: Locale-specific casing can differ from simple character mapping.
  • Case Swapper: The operation runs in the browser and does not need a network service.

Questions

What input does Case Swapper accept?

Case Swapper accepts text. Converts uppercase letters to lowercase ones, and lowercase ones to uppercase ones.

Does Case Swapper need extra settings?

Case Swapper does not define extra operation settings. It uses its built-in behavior with the supplied input.

What does Case Swapper return?

Case Swapper returns text. Converts uppercase letters to lowercase ones, and lowercase ones to uppercase ones.