Hydrogen of nteract is described as 'At GitHub, we’re building the text editor we’ve always wanted: hackable to the core, but approachable on the first day without ever touching a config file. We can’t wait to see what you build with it'. There are four alternatives to Hydrogen of nteract for a variety of platforms, including Mac, Windows, Linux, Online / Web-based and BSD. The best alternative is GNU Octave, which is both free and Open Source. Other great apps like Hydrogen of nteract are nteract (Free, Open Source), TabNine (Freemium) and apm (Free, Open Source).
Octave is a computer program for performing numerical computations which is mostly compatible with MATLAB. It is part of the GNU Project. It is free software under the terms of the GNU General Public License.
nteract is a desktop application that allows you to develop rich documents that contain prose, executable code (in almost any language!), and images. nteract helps you write your next code-driven story.