Select text that you want to convert, then execute JaConv Commands command from command palette.
Choose one of the sub commands (quick pick items) that will actually perform half-width (“Hankaku”) - full-width (“Zenkaku”) conversion for the selected text.
Command & Sub Commands
Command
Shortcut
Description
JaConv Commands
Ctrl+Shift+r (Mac: Cmd+Shift+r)
Show Quick Pick Items - a list of jaconv sub commands
Sub Command
Description
toHebon
Convert full-width Hiragana to half-width Ascii with Hebon-style letters
toKatakana
Convert full-width Hiragana to full-width Katakana
toHiragana
Covert full-width Katakana to full-width Hiragana
toHanAscii
Convert full-width Ascii to half-width
toZenAscii
Convert half-width Ascii to full-width
toHanKana
Convert full-width Katakana to half-width
toZenKana
Convert half-width Katakana to full-width
toHan
Convert full-width Ascii & Katakana to half-width
toZen
Convert half-width Ascii & Katakana to full-wiwdth
normalize
Convert full-width Ascii to half-width, and half-width Katakana to full-width