Developing a keyboard heatmap and customizing keys with Karabiner

• keylogger

  3 541 0.0 C

  A no-frills keylogger for macOS. (by caseyscarborough)

First, we need to collect our keystrokes. This would be a nice challenge to do, but I'll leave it on the side for now. So, I started looking into existing keyloggers in Github (Yeah, I know this sounds a bit weird because the chosen one could be malicious - I'm aware of that possibility). After a few possibilities, I found out caseyscarborough/keylogger, went through the code and it seemed simple to use and make changes to adjust it for my specific needs. Now let's dive into the heatmap and drawing part.

• mogrify_draw

  1 16 0.0 Elixir

From the beginning I wanted the heatmapper to draw the keyboard and not use a base SVG layout (or something similar). Zamith's mogrify_draw enables me to draw keyboard keys in a simple way using mogrify as the base.

• InfluxDB

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• keylogger

  1 0 0.0 C

  A no-frills keylogger for Mac OS X. (by zediogoviana)

The first step is to parse the log file of keystrokes provided. As I mentioned earlier, I made some changes to the keylogger and this version can be found here. You can then follow the instructions in the README on how to use it, but it outputs to the file the following on each keystroke read:

• keyboard-heatmap

  1 7 0.0 Elixir

  Get an heatmap of your keystrokes (by zediogoviana)

You can check the complete code and more detailed instructions on how to run it, in this Github repo.

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