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 an app in the Office & Productivity category. There are more than 10 alternatives to Terminal Velocity for a variety of platforms, including Mac, Windows, Linux, Online / Web-based and BSD. The best alternative is Zim, which is both free and Open Source. Other great apps like Terminal Velocity are Trilium Notes (Free, Open Source), Tomboy (Free, Open Source), nvALT (Free, Open Source) and Notational Velocity (Free, Open Source).
Notational Velocity is a mouseless application for storing and retrieving notes. With Notational Velocity, searching for notes is not a separate action; rather, it is the primary interface. Searching encompasses all notes content and occurs instantly with each key pressed.
Quiver is a notebook built for programmers. It lets you easily mix text, code and Markdown within one note, edit code with an awesome code editor, live preview Markdown and LaTeX cells, and find any note instantly via the full-text search.
WRITE OFFLINE You can write/edit your notes on your laptop even if you are offline. MULTIPLE DEVICES Boostnote is available for browser, desktop and mobile. SYNTAX HIGHLIGHT Boostnote can highlight code syntax in more than 100 languages.