See the Pen event.keyCode tester by Chris Coyier (@chriscoyier) on CodePen.
| 
| Key | Code |  
| backspace | 8 |  
| tab | 9 |  
| enter | 13 |  
| shift | 16 |  
| ctrl | 17 |  
| alt | 18 |  
| pause/break | 19 |  
| caps lock | 20 |  
| escape | 27 |  
| (space) | 32 |  
| page up | 33 |  
| page down | 34 |  
| end | 35 |  
| home | 36 |  
| left arrow | 37 |  
| up arrow | 38 |  
| right arrow | 39 |  
| down arrow | 40 |  
| insert | 45 |  
| delete | 46 |  
| 0 | 48 |  
| 1 | 49 |  
| 2 | 50 |  
| 3 | 51 |  
| 4 | 52 |  
| 5 | 53 |  
| 6 | 54 |  
| 7 | 55 |  
| 8 | 56 |  
| 9 | 57 |  
| a | 65 |  
| b | 66 |  
| c | 67 |  
| d | 68 |  |  | 
| Key | Code |  
| e | 69 |  
| f | 70 |  
| g | 71 |  
| h | 72 |  
| i | 73 |  
| j | 74 |  
| k | 75 |  
| l | 76 |  
| m | 77 |  
| n | 78 |  
| o | 79 |  
| p | 80 |  
| q | 81 |  
| r | 82 |  
| s | 83 |  
| t | 84 |  
| u | 85 |  
| v | 86 |  
| w | 87 |  
| x | 88 |  
| y | 89 |  
| z | 90 |  
| left window key | 91 |  
| right window key | 92 |  
| select key | 93 |  
| numpad 0 | 96 |  
| numpad 1 | 97 |  
| numpad 2 | 98 |  
| numpad 3 | 99 |  
| numpad 4 | 100 |  
| numpad 5 | 101 |  
| numpad 6 | 102 |  
| numpad 7 | 103 |  |  | 
| Key | Code |  
| numpad 8 | 104 |  
| numpad 9 | 105 |  
| multiply | 106 |  
| add | 107 |  
| subtract | 109 |  
| decimal point | 110 |  
| divide | 111 |  
| f1 | 112 |  
| f2 | 113 |  
| f3 | 114 |  
| f4 | 115 |  
| f5 | 116 |  
| f6 | 117 |  
| f7 | 118 |  
| f8 | 119 |  
| f9 | 120 |  
| f10 | 121 |  
| f11 | 122 |  
| f12 | 123 |  
| num lock | 144 |  
| scroll lock | 145 |  
| semi-colon | 186 |  
| equal sign | 187 |  
| comma | 188 |  
| dash | 189 |  
| period | 190 |  
| forward slash | 191 |  
| grave accent | 192 |  
| open bracket | 219 |  
| back slash | 220 |  
| close braket | 221 |  
| single quote | 222 |  |