Inverse Case Converter
Invert the case of every letter, turning capitals to lower case and back.
Inverse Case Converter is a browser-based text tool on TextToolsBase. Invert the case of every letter, turning capitals to lower case and back. To use it, paste or type your text and view the result directly in your browser — no signup and nothing to install.
Inverts the case of every letter; the result matches toggle case, the difference being only in naming and intent.
Inverse Case Demo → Inverse case means swapping the case of each letter, the mirror image of what you typed.
This converter inverts every letter, so the capitals and lower-case letters in your text trade places.
How to use Inverse Case Converter
- Paste the mixed-case text you want to invert.
- Inverse Case Converter inverts each letter, turning capitals to lower case and lower case to capitals.
- Copy the inverted text; the output matches toggle case.
Use cases
- Producing a mirror-case version of a phrase.
- Checking how reversed casing reads.
- Creating a contrast effect from existing text.
Good to know
Inverse Case Converter swaps the case of every letter, so Inverse Case Demo becomes iNVERSE cASE dEMO. In practice the output is identical to toggle case; the two differ only in name and the intent behind the keyword. Letters are handled as grapheme clusters so accents invert cleanly, and numbers and punctuation are left alone.
Frequently asked questions
Is inverse case the same as toggle case?
The output is the same. The names differ, but both swap each letter from its current case.
Why offer both then?
Different people search for inverse and toggle; each page explains the idea in its own terms.
Are combining marks handled?
Yes. Letters are treated as grapheme clusters, so accented characters invert correctly.