JetBrains Fleet is described as 'Built from scratch, based on 20 years of experience developing IDEs. Fleet uses the IntelliJ code-processing engine, with a distributed IDE architecture and a reimagined UI' and is a Text Editor in the development category. There are more than 100 alternatives to JetBrains Fleet for a variety of platforms, including Mac, Windows, Linux, BSD and Haiku. The best alternative is Visual Studio Code, which is free. Other great apps like JetBrains Fleet are Notepad++, Atom, Sublime Text and Vim.
JetBrains Fleet is mainly a Text Editor but alternatives to it may also be Code Editors or IDEs. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of JetBrains Fleet.
Eddie is a programmers editor for Mac OSX and Gnome Linux. Inspired by the Macintosh Programmer's Workshop, Eddie brings some of it's powerful features into a modern lightweight and capable programmer's editor.
Jane is Just Another Nasty Editor, designed to view and edit all kind of ASCII files. There are millions of similar editors already available, but the choice is yours: those who try this might discover nice features they'll soon don't want to miss anymore.
Acme is a powerful text editor, development environment and textual-user-interface platform developed by Rob Pike originally for Plan 9 from Bell Labs research operating system, and now has ports available for all major platforms.
NEdit is a multi-purpose text editor for the X Window System, which combines a standard, easy to use, graphical user interface with the thorough functionality and stability required by users who edit text eight hours a day.
BabelPad is a free Unicode text editor for Windows that supports the proper rendering of most complex scripts, and allows you to assign different fonts to different scripts in order to facilitate multi-script text editing.