What is the best platform to write a web bot on?

Question

JavaScript

Hello. I've decided to practice writing a bot in the Javascript language. I write my bots as extensions for google chrome, but you know, it's somehow not right, I want something more like a bot, and not some kind of extension. I would like not through a browser, but for example through some kind of console. I don't want to see the DOM. Thank you very much in advance, beautiful! :)