On Windows, to make special characters, hold down the Alt key and type in the numbers from the numeric keypad.
On MacOS, the option key functions as a modifier key like the shift key. Hold it down and press another key simultaneously. For option - shift, hold down both the option and shift keys and press another key simultaneously.
Character | MacOS | Windows | Description |
À | option - ` A | Alt + 0192 | grave accent |
Á | option - e A | Alt + 0193 | acute accent |
 | option - i A | Alt + 0194 | circumflex accent |
à | option - n A | Alt + 0195 | tilde |
Ä | option - u A | Alt + 0196 | umlaut |
Å | option - shift - a | Alt + 0197 | ring |
Æ | option - shift - ' | Alt + 0198 | AE |
Ç | option - shift - c | Alt + 0199 | cedilla |
È | option - ` E | Alt + 0200 | grave accent |
É | option - e E | Alt + 0201 | acute accent |
Ê | option - i E | Alt + 0202 | circumflex accent |
Ë | option - u E | Alt + 0203 | umlaut |
Ì | option - ` I | Alt + 0204 | grave accent |
Í | option - e I | Alt + 0205 | acute accent |
Î | option - i I | Alt + 0206 | circumflex accent |
Ï | option - u I | Alt + 0207 | umlaut |
Ð | option - u I | Alt + 0208 | Icelandic |
Ñ | option - n N | Alt + 0209 | tilde |
Ò | option - ` O | Alt + 0210 | grave accent |
Ó | option - e O | Alt + 0211 | acute accent |
Ô | option - i O | Alt + 0212 | circumflex accent |
Õ | option - n O | Alt + 0213 | tilde |
Ö | option - n O | Alt + 0214 | umlaut |
Ø | option - shift - o | Alt + 0216 | slash |
Ù | option - ` U | Alt + 0217 | grave accent |
Ú | option - e U | Alt + 0218 | acute accent |
Û | option - i U | Alt + 0219 | circumflex accent |
Ü | option - u U | Alt + 0220 | umlaut |
Ý | Alt + 0221 | acute accent | |
Þ | Alt + 0222 | Icelandic | |
ß | option - s | Alt + 0223 | German |
à | option - ` a | Alt + 0224 | grave accent |
á | option - e a | Alt + 0225 | acute accent |
â | option - i a | Alt + 0226 | circumflex accent |
ã | option - n a | Alt + 0227 | tilde |
ä | option - u a | Alt + 0228 | umlaut |
å | option - a | Alt + 0229 | ring |
æ | option - ' | Alt + 0230 | ae |
ç | option - c | Alt + 0231 | cedilla |
è | option - ` e | Alt + 0232 | grave accent |
é | option - e e | Alt + 0233 | acute accent |
ê | option - i e | Alt + 0234 | circumflex accent |
ë | option - u e | Alt + 0235 | umlaut |
ì | option - ` i | Alt + 0236 | grave accent |
í | option - e i | Alt + 0237 | acute accent |
î | option - i i | Alt + 0238 | circumflex accent |
ï | option - u i | Alt + 0239 | umlaut |
ð | Alt + 0240 | Icelandic | |
ñ | option - n n | Alt + 0241 | tilde |
ò | option - ` o | Alt + 0242 | grave accent |
ó | option - e o | Alt + 0243 | acute accent |
ô | option - i o | Alt + 0244 | circumflex accent |
õ | option - n o | Alt + 0245 | tilde |
ö | option - u o | Alt + 0246 | umlaut |
÷ | Alt + 0247 | division sign | |
ø | option - o | Alt + 0248 | slash |
ù | option - ` u | Alt + 0249 | grave accent |
ú | option - e u | Alt + 0250 | acute accent |
û | option - i u | Alt + 0251 | circumflex accent |
ü | option - u u | Alt + 0252 | umlaut |
ý | Alt + 0253 | acute accent | |
þ | Alt + 0254 | Icelandic | |
ÿ | option - u y | Alt + 0255 | umlaut |