Invert Text Case
Paste your text and flip every letter: aBc becomes AbC, instantly.
Inverted text
How to invert text case
Paste your text into Your text, or press Load example. The case-flipped version
appears next to it and updates as you type. Copy the result or download it as a .txt file.
Everything runs in your browser, so nothing you paste is uploaded.
Examples
| Input | Output |
|---|---|
| Hello World | hELLO wORLD |
| aBc 123! | AbC 123! |
| Café NAÏVE | cAFÉ naïve |
Limits and edge cases
- Only cased letters flip. Digits, punctuation, spaces and emoji stay the same.
- Inverting twice returns the original text, so the tool is its own undo.
- Accented letters flip with their accent kept: É becomes é.
Frequently asked questions
How do I invert the case of text?
Paste the text into the input box and the case-flipped version appears instantly in the result box. Copy it or download it as a .txt file.
What exactly gets flipped?
Every letter with a case swaps: lowercase a becomes A, uppercase A becomes a. Digits, spaces, punctuation, line breaks and emoji stay exactly the same.
Can I flip it back?
Yes. Inverting twice returns the original text, so run the output through the tool again to undo it.
Does it handle accents and non-English letters?
Yes. Inversion is Unicode-aware, so Café becomes cAFÉ. Characters without case pass through unchanged.
Will it remove my line breaks?
No. Line breaks, tabs and multiple spaces are preserved exactly. Only letter case changes.
Is my text uploaded anywhere?
No. Inversion runs in your browser with JavaScript and nothing is sent to a server. Inputs under 200 KB are kept in your browser's local storage so they are still there when you come back.