What's Up Doc? is described as 'Terrible at taking notes or keeping track? Not any more' and is an app in the Office & Productivity category. There are more than 100 alternatives to What's Up Doc? for a variety of platforms, including Windows, Mac, Linux, BSD and Online / Web-based. The best alternative is Visual Studio Code, which is free. Other great apps like What's Up Doc? are Notepad++ (Free, Open Source), Atom (Free, Open Source), Sublime Text (Free Personal) and Vim (Free, Open Source).
Neovim is a project that seeks to aggressively refactor Vim in order to: Simplify maintenance and encourage contributions. Split the work between multiple developers. Enable the implementation of new/modern user interfaces without any modifications to the core source.
Bluefish is a powerful editor targeted towards programmers and webdesigners, with many options to write websites, scripts and programming code. Bluefish supports many programming and markup languages, and it focuses on editing dynamic and interactive websites.
CudaText is a cross-platform text editor, written in Lazarus. It starts quite fast (0.5 sec with ~30 plugins on CPU Intel Core i3 3Hz). It is extensible by Python add-ons (plugins, linters, code tree parsers, external tools).
Considering that most text editors are eather too heavy or look too old, the author came up with Notepads, designed to be a modern-looking UWP app. Notepads features : - Fluent design with built-in Tab system.