Atom
A hackable text editor for the 21st Century. At GitHub, we're building the text editor we've always wanted. A tool you can customize to do anything, but also use productively on the first day without ever touching a config file.
Personal information manager and Python IDE, innovative authoring and programming tool.
Leo is an open source text editor/outliner that features clones (virtual copies of outline nodes) as its central tool of organization, navigation, customization and scripting.
note-taking notes-manager productivity-tool outliner programming authoring ide
A hackable text editor for the 21st Century. At GitHub, we're building the text editor we've always wanted. A tool you can customize to do anything, but also use productively on the first day without ever touching a config file.
Free Open Source Mac OS X Windows Linux BSD Electron / Atom Shell
PyScripter is a free and open-source Python Integrated Development Environment (IDE) created with the ambition to become competitive in functionality with commercial Windows-based IDEs available for other languages.
Free Open Source Windows
Builder is an IDE for GNOME that is focused on bringing the power of the platform to more developers than ever before. The Builder project started out of a class teaching people to program for the GNOME platform.
Free Open Source Linux