PyKeylogger is described as 'Free open source keylogger written in the python programming language, available under the terms of the GNU General Public License. I threw it together one day after not being able to find a simple and trustworthy (as measured by the availability of source code)' and is a Keylogger in the backup & sync category. There are more than 10 alternatives to PyKeylogger for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best PyKeylogger alternative is WhatPulse, which is free. Other great apps like PyKeylogger are Best Free Keylogger, All In One Keylogger, Revealer Keylogger and Aobo Keylogger.