Fullwidth and Halfwidth Alphanumeric Converter
Convert halfwidth halfwide ASCII characters and spaces into the opposite form.
Input
The example value has been entered. Check it immediately or change the value.
Input is processed in the browser. Refreshing returns a sample value.
Result
Check or change the value using the example value result.
Affects English, numbers, ASCII symbols, and spaces. Katakana in Japanese is not converted.
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Calculation·conversion criteria
Swap halfwide alphanumeric characters and ASCII alphanumeric characters.
Input example
ＡＢＣ１２３ → ABC123
Converting ＡＢＣ１２３ to half-width produces ABC123. The conversion also includes supported symbols and full-width spaces.
How to use
- Use the provided example value or change the text and direction items.
- Click Verify result and check the following result.
- Result can be copied if needed.
Frequently Asked Questions
Is Hangeul also converted as a half-kana?
No. This tool only handles ASCII equivalents of letters, numbers, symbols, and spaces. For broader Unicode normalization, check the impact of Unicode normalization.
Calculation criteria and reference materials
- Unicode — character encoding and Korean processing
UTF-16: Definition of Korean syllables and character representation.
Verification of calculation criteria: · Calculation·verification principles · Report errors