You get Sublime 3 from https://www.sublimetext.com/3
Note: you can use it without any restrictions but you still need to buy a license. It’s really worth it!
Thx to Nils Liberg and using Sublime is almost essential when it comes to complex scripts since it simplifies things a lot (like structuring our code and saving lots of code-lines). It also helps us to better reveal some errors. Read more »