Swap Case
Swap the case of every letter — uppercase becomes lowercase and vice versa.
Swap case flips every letter's case: UPPER becomes lower and lower becomes UPPER. It's the quick fix for text typed with caps lock on by mistake, a playful effect, or reversing a title that came in the wrong case.
Paste your text and this tool inverts the case of every letter while leaving numbers, punctuation and spacing untouched. Unlike lowercase or uppercase conversion, swap case preserves the pattern of your capitalization, just flipped.
How to use Swap Case
- 1
Paste or type your text
Enter the text you want to transform.
- 2
See the result
The output updates instantly as you type.
- 3
Copy the result
Use it wherever you need it.
Features
- Instant transformation
- Runs privately in your browser
- Handles Unicode text
Frequently asked questions
Common mistakes to avoid
- Expecting the change to be reversible when it isn't — keep your original text.
- Applying it to content where the original formatting was meaningful.
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