The source code editor is a text editor tool designed specially to edit or write the source code of any programming language. There is a basic source code editor present in Windows, i.e., Notepad, but it has limited features; therefore, for better formatting and features like multiple tabs, and plugins, you can use other editors like:

1.       TextPad (for Windows only): It is a powerful, general-purpose editor for plain text files. We can easily type the C program in TextPad. You can open Project folders inside the textpad so that you don't have to open files again and again, like in notepad.

2.       Notepad++ (for Windows only): It is a text editor for Microsoft Windows. Unlike notepad, it supports multiple tabs.

3.       VS Code: (for Windows, Mac, and Linux) Visual Studio Code gives you suggestions to auto-complete the words. It has an inbuilt debugger to trace each line of code.

4.       ATOM: (for Windows, Mac, and Linux): Atom helps you write code faster with a smart and flexible autocomplete.

5.       Sublime Text: Sublime text is a free source code editor with expandable functionality using plugins. It supports almost all programming languages (such as Python, Java, C++, etc.), is community-built, and is maintained under a free license.