Terminal Velocity is described as 'Fast, cross-platform (pip installable) note-taking application for the UNIX terminal, it’s a clone of the OS X app Notational Velocity that runs in a terminal and uses your $EDITOR' and is a Note-taking tool in the office & productivity category. There are eight alternatives to Terminal Velocity for a variety of platforms, including Mac, Windows, Linux, BSD and Self-Hosted apps. The best Terminal Velocity alternative is Zim, which is both free and Open Source. Other great apps like Terminal Velocity are Trilium Notes, Tomboy, Notational Velocity and Quiver.