English uppercase/lowercase conversion
Swaps uppercase, lowercase, and first letter of words in English letters.
Input
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Result
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Calculation·conversion criteria
Swaps uppercase and lowercase in English sentences.
Input example
Hello world → HELLO WORLD
Hello World in uppercase becomes HELLO WORLD, in lowercase becomes hello world. Korean doesn’t have uppercase or lowercase distinction, so it remains the same.
How to use
- Use the provided example value or change the text and conversion items.
- Click Verify result and check the following result.
- Result can be copied if needed.
Frequently Asked Questions
Does the first letter mode of the word match the grammar of the English title?
No. It’s a simple rule where lowercase letters are first converted to uppercase at the start of the English word boundaries. For abbreviations, proper nouns, and prepositions, check the editing rules directly.
Calculation criteria and reference materials
The calculation formula and scope of this tool are disclosed in the above description. Examples can be checked by substituting input values into the formula or following the specified string and calendar handling rules.
Verification of calculation criteria: · Calculation·verification principles · Report errors