Micropython editors.

There are several free programmes availabe online that enable you to write your program code, download it to a development board, run it and debug it. Collectively they are referred to as the IDE, [Integrated Development Environment].
To mention a few, there is uPyCraft, Thonny, VS Code Editor (Visual Studio Code) with the PyMakr extension. My preference is Thonny, and there are links to all three in the links section.

Both Thonny and uPyCraft require Python v3.7.x or later installed on the computer they are running on.
Additionally, you will need a tool to flash the micropython firmware to your development board before you can programme uPython on it. esptool.py is an easy to use programme to do this.

I will not dwell on this subject here, as I assume visitors to this site are already ESP users. The tutorials on the website "RANDOM NERD TUTORIALS" run by Sarah and Rui Santos are an excellent source of information for beginners starting out with ESP development boards.