Editors, IDE

As a developer, the terminal being your partner and the editor is your best friend:

• Vim (Linux, macOS, Windows)
  Free, one of the most powerful, many will say the most powerful, single file or project-oriented.
• Atom (Linux, macOS, Windows)
  Free project-oriented, minimalist, and productive UI (my day to day favorite editor), slow and memory hungry
• VS Code (Linux, macOS, Windows)
  Free most popular editor, most active community, and plugins development
• Sublime Text (Linux, macOS, Windows)
  Free, very fast, single file or project-oriented
• BBedit (macOS)
  Free version very powerful, very fast
• Notepad++ Windows)
  Free, almost a Windows standard, powerful and fast
• WebStorm (Linux, macOS, Windows) Licensed, 30 days trial
• ...