iterm-tmux-friendly-keymap.json

{
  "Key Mappings": {
    "0x2a-0x200000": {
      "Action": 12,
      "Text": "*"
    },
    "0x2b-0x200000": {
      "Action": 12,
      "Text": "+"
    },
    "0x2d-0x200000": {
      "Action": 12,
      "Text": "-"
    },
    "0x2e-0x200000": {
      "Action": 12,
      "Text": "."
    },
    "0x2f-0x200000": {
      "Action": 12,
      "Text": "/"
    },
    "0x3-0x200000": {
      "Action": 11,
      "Text": "0x0A"
    },
    "0x30-0x200000": {
      "Action": 12,
      "Text": "0"
    },
    "0x31-0x200000": {
      "Action": 12,
      "Text": "1"
    },
    "0x32-0x200000": {
      "Action": 12,
      "Text": "2"
    },
    "0x33-0x200000": {
      "Action": 12,
      "Text": "3"
    },
    "0x34-0x200000": {
      "Action": 12,
      "Text": "4"
    },
    "0x35-0x200000": {
      "Action": 12,
      "Text": "5"
    },
    "0x36-0x200000": {
      "Action": 12,
      "Text": "6"
    },
    "0x37-0x200000": {
      "Action": 12,
      "Text": "7"
    },
    "0x38-0x200000": {
      "Action": 12,
      "Text": "8"
    },
    "0x39-0x200000": {
      "Action": 12,
      "Text": "9"
    },
    "0x7f-0x40000": {
      "Action": 11,
      "Text": "0x17"
    },
    "0x7f-0x60000": {
      "Action": 11,
      "Text": "0x1f"
    },
    "0xf700-0x220000": {
      "Action": 10,
      "Text": "[1;2A"
    },
    "0xf700-0x240000": {
      "Action": 10,
      "Text": "[1;5A"
    },
    "0xf700-0x260000": {
      "Action": 10,
      "Text": "[1;6A"
    },
    "0xf700-0x280000": {
      "Action": 11,
      "Text": "0x1b 0x1b 0x5b 0x41"
    },
    "0xf700-0x2a0000": {
      "Action": 10,
      "Text": "[1;4A"
    },
    "0xf700-0x300000": {
      "Action": 11,
      "Text": "0x1b 0x1b 0x5b 0x41"
    },
    "0xf700-0x320000": {
      "Action": 10,
      "Text": "[1;4A"
    },
    "0xf701-0x220000": {
      "Action": 10,
      "Text": "[1;2B"
    },
    "0xf701-0x240000": {
      "Action": 10,
      "Text": "[1;5B"
    },
    "0xf701-0x260000": {
      "Action": 10,
      "Text": "[1;6B"
    },
    "0xf701-0x280000": {
      "Action": 11,
      "Text": "0x1b 0x1b 0x5b 0x42"
    },
    "0xf701-0x2a0000": {
      "Action": 10,
      "Text": "[1;4B"
    },
    "0xf701-0x300000": {
      "Action": 11,
      "Text": "0x1b 0x1b 0x5b 0x42"
    },
    "0xf701-0x320000": {
      "Action": 10,
      "Text": "[1;4B"
    },
    "0xf702-0x220000": {
      "Action": 10,
      "Text": "[1;2D"
    },
    "0xf702-0x240000": {
      "Action": 10,
      "Text": "[1;5D"
    },
    "0xf702-0x260000": {
      "Action": 10,
      "Text": "[1;6D"
    },
    "0xf702-0x280000": {
      "Action": 11,
      "Text": "0x1b 0x1b 0x5b 0x44"
    },
    "0xf702-0x2a0000": {
      "Action": 10,
      "Text": "[1;4D"
    },
    "0xf702-0x300000": {
      "Action": 11,
      "Text": "0x1b 0x1b 0x5b 0x44"
    },
    "0xf702-0x320000": {
      "Action": 10,
      "Text": "[1;4D"
    },
    "0xf703-0x220000": {
      "Action": 10,
      "Text": "[1;2C"
    },
    "0xf703-0x240000": {
      "Action": 10,
      "Text": "[1;5C"
    },
    "0xf703-0x260000": {
      "Action": 10,
      "Text": "[1;6C"
    },
    "0xf703-0x280000": {
      "Action": 11,
      "Text": "0x1b 0x1b 0x5b 0x43"
    },
    "0xf703-0x2a0000": {
      "Action": 10,
      "Text": "[1;4C"
    },
    "0xf703-0x300000": {
      "Action": 11,
      "Text": "0x1b 0x1b 0x5b 0x43"
    },
    "0xf703-0x320000": {
      "Action": 10,
      "Text": "[1;4C"
    },
    "0xf704-0x100000": {
      "Action": 10,
      "Text": "[1;3P"
    },
    "0xf704-0x120000": {
      "Action": 10,
      "Text": "[1;4P"
    },
    "0xf704-0x140000": {
      "Action": 10,
      "Text": "[1;7P"
    },
    "0xf704-0x160000": {
      "Action": 10,
      "Text": "[1;8P"
    },
    "0xf704-0x20000": {
      "Action": 10,
      "Text": "[1;2P"
    },
    "0xf704-0x40000": {
      "Action": 10,
      "Text": "[1;5P"
    },
    "0xf704-0x60000": {
      "Action": 10,
      "Text": "[1;6P"
    },
    "0xf705-0x100000": {
      "Action": 10,
      "Text": "[1;3Q"
    },
    "0xf705-0x120000": {
      "Action": 10,
      "Text": "[1;4Q"
    },
    "0xf705-0x140000": {
      "Action": 10,
      "Text": "[1;7Q"
    },
    "0xf705-0x160000": {
      "Action": 10,
      "Text": "[1;8Q"
    },
    "0xf705-0x20000": {
      "Action": 10,
      "Text": "[1;2Q"
    },
    "0xf705-0x40000": {
      "Action": 10,
      "Text": "[1;5Q"
    },
    "0xf705-0x60000": {
      "Action": 10,
      "Text": "[1;6Q"
    },
    "0xf706-0x100000": {
      "Action": 10,
      "Text": "[1;3R"
    },
    "0xf706-0x120000": {
      "Action": 10,
      "Text": "[1;4R"
    },
    "0xf706-0x140000": {
      "Action": 10,
      "Text": "[1;7R"
    },
    "0xf706-0x160000": {
      "Action": 10,
      "Text": "[1;8R"
    },
    "0xf706-0x20000": {
      "Action": 10,
      "Text": "[1;2R"
    },
    "0xf706-0x40000": {
      "Action": 10,
      "Text": "[1;5R"
    },
    "0xf706-0x60000": {
      "Action": 10,
      "Text": "[1;6R"
    },
    "0xf707-0x100000": {
      "Action": 10,
      "Text": "[1;3S"
    },
    "0xf707-0x120000": {
      "Action": 10,
      "Text": "[1;4S"
    },
    "0xf707-0x140000": {
      "Action": 10,
      "Text": "[1;7S"
    },
    "0xf707-0x160000": {
      "Action": 10,
      "Text": "[1;8S"
    },
    "0xf707-0x20000": {
      "Action": 10,
      "Text": "[1;2S"
    },
    "0xf707-0x40000": {
      "Action": 10,
      "Text": "[1;5S"
    },
    "0xf707-0x60000": {
      "Action": 10,
      "Text": "[1;6S"
    },
    "0xf708-0x20000": {
      "Action": 10,
      "Text": "[15;2~"
    },
    "0xf709-0x20000": {
      "Action": 10,
      "Text": "[17;2~"
    },
    "0xf70a-0x20000": {
      "Action": 10,
      "Text": "[18;2~"
    },
    "0xf70b-0x20000": {
      "Action": 10,
      "Text": "[19;2~"
    },
    "0xf70c-0x20000": {
      "Action": 10,
      "Text": "[20;2~"
    },
    "0xf70d-0x20000": {
      "Action": 10,
      "Text": "[21;2~"
    },
    "0xf70e-0x20000": {
      "Action": 10,
      "Text": "[23;2~"
    },
    "0xf70f-0x20000": {
      "Action": 10,
      "Text": "[24;2~"
    },
    "0xf728-0x40000": {
      "Action": 11,
      "Text": "0xB"
    },
    "0xf729-0x20000": {
      "Action": 10,
      "Text": "[1;2H"
    },
    "0xf729-0x40000": {
      "Action": 10,
      "Text": "[1;5H"
    },
    "0xf72b-0x20000": {
      "Action": 10,
      "Text": "[1;2F"
    },
    "0xf72b-0x40000": {
      "Action": 10,
      "Text": "[1;5F"
    },
    "0xf739-0x0": {
      "Action": 13,
      "Text": ""
    }
  },
  "Touch Bar Items": {}
}

This can be imported in iTerm2 -> Preferences, either:

• globally: via Keys -> Key bindings -> Presets -> Import
• or for a specific profile: via Profile -> your tmux-dedicated profile -> Keys

It makes it so that iTerm passes through key codes that are then properly understood by tmux (similarly to how it would on Linux).