This tool swaps the case of every letter — uppercase becomes lowercase and vice versa — instantly in your browser.
How to use it
- Paste your text.
- Each letter's case is inverted.
- Copy the swapped result.
About Swap Case
Swapping case is a quick novelty and testing transformation that flips every uppercase letter to lowercase and every lowercase letter to uppercase. This tool applies it instantly while leaving numbers and symbols unchanged. It runs entirely in your browser.
FAQ
Does it affect numbers?
No — only letters have their case swapped; numbers and symbols are unchanged.
Is it reversible?
Yes — applying swap case twice returns the original text.
Where is it useful?
For testing case handling and playful text effects.