What do you use for template inheritance when developing UI in HTML?

I do mostly back-end development, but this time I have to create UI using some UI Kit. I want to remain DRY and for this reason I want to use template inheritance, preferably in JavaScript.
What do you use in this situation? Do you use any build tool like webpack or task runner like gulp ? If yes, what do you recommend?
Note: I am not developing Node/Express application.

Comments

[Anwar]

I really recommand trying vuejs. Small learning curve, very effective.

[Sethu Senthil]

This is why I use React where you can make your code modular.

[Sanjay Ojha]

I know, but this is not a option here. After some research, I have started using nunjucks with gulp but still I am searching for some better options.