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keylogger.el

keylogger.el is an Emacs library which records transition times between pairs of keys and has a neat GUI for analyzing the results.

For an example of the results and the analysis this lets you do, see https://pavpanchekha.com/blog/emacs-keylogger.html

Installation

Download the source code and load, such as by adding a load call to your .emacs.d/init.el:

(load "<path-to-source>/keylogger.el")

Then add the following invocations to start the keylogger every time you start Emacs:

(setf keylogger-filename "<path-to-data>/keys.el")
(keylogger-load)
(keylogger-start)
(keylogger-autosave)

These lines set the file to store key data in, load the existing data, start the keylogger, and set it to save every 15 minutes.

If you're using multiple computers, you might prefer having a different save file for each computer. That way, when you sync files, there aren't any conflicts.

Analyzing the data

To analyze the data, you need to convert it into a file named keys.jsonp in the same directory as graph.html using the transform.py:

python2 transform.py keys.el > keys.jsonp

If you have multiple save files, you can list them as multiple arguments to transform.py.

Then, view graph.html in a browser.