Peppermint is described as 'tweakable Swiss Army knife for Coding on your Mac' and is an app in the Development category. There are more than 100 alternatives to Peppermint 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 Peppermint are Atom (Free, Open Source), Sublime Text (Free Personal), Vim (Free, Open Source) and Eclipse (Free, Open Source).
VS Code is more than just a code editor, it provides the tools and extensions to compile, debug, compare, refactor, and even manage code repositories all within a highly-customised development environment.
IntelliJ IDEA is an integrated development environment (IDE) written in Java for developing computer software. It is developed by JetBrains, and is available as an Apache 2 Licensed community edition, and in a proprietary commercial edition.
The Kate project develops two main products: KatePart, the advanced editor component which is used in numerous KDE applications requiring a text editing component, and Kate, a MDI text editor application.