Webpack and gulp -

i confused webpack , gulp. know gulp task runner , webpack module bundler, seems there many overlapping features? compile, minification, temp live server etc. question can replace gulp webpack in production?

i know gulp has many features, focusing minification, concatenation, live server, live reload, uglify, sourcemap.

if need features webpack provides it's better use webpack along webpack dev server. using both redundant.

i'm using grunt , webpack in of projects grunt concat, minify, , test. spawn webpack , karma using grunt-concurrent.